# SageMath code for working with number field 26.2.4863650591176530100056566961783399658203125.1

# Some of these functions may take a long time to execute (this depends on the field).

# Define the number field: 
x = polygen(QQ);  K.<a> = NumberField(x^26 - 4*x^25 + 20*x^24 - 36*x^23 + 151*x^22 - 166*x^21 + 575*x^20 - 1143*x^19 + 1160*x^18 - 4286*x^17 + 2641*x^16 - 4158*x^15 + 10417*x^14 + 3815*x^13 + 21287*x^12 + 17505*x^11 + 19313*x^10 + 20293*x^9 + 10822*x^8 + 10971*x^7 + 6883*x^6 + 3740*x^5 + 2969*x^4 + 837*x^3 + 388*x^2 + 17*x - 1)

# Defining polynomial: 
K.defining_polynomial()

# Degree over Q: 
K.degree()

# Signature: 
K.signature()

# Discriminant: 
K.disc()

# Ramified primes: 
K.disc().support()

# Autmorphisms: 
K.automorphisms()

# Integral basis: 
K.integral_basis()

# Class group: 
K.class_group().invariants()

# Unit group: 
UK = K.unit_group()

# Unit rank: 
UK.rank()

# Generator for roots of unity: 
UK.torsion_generator()

# Fundamental units: 
UK.fundamental_units()

# Regulator: 
K.regulator()

# Analytic class number formula: 
# self-contained SageMath code snippet to compute the analytic class number formula
x = polygen(QQ);  K.<a> = NumberField(x^26 - 4*x^25 + 20*x^24 - 36*x^23 + 151*x^22 - 166*x^21 + 575*x^20 - 1143*x^19 + 1160*x^18 - 4286*x^17 + 2641*x^16 - 4158*x^15 + 10417*x^14 + 3815*x^13 + 21287*x^12 + 17505*x^11 + 19313*x^10 + 20293*x^9 + 10822*x^8 + 10971*x^7 + 6883*x^6 + 3740*x^5 + 2969*x^4 + 837*x^3 + 388*x^2 + 17*x - 1)
DK = K.disc(); r1,r2 = K.signature(); RK = K.regulator();  RR = RK.parent()
hK = K.class_number(); wK = K.unit_group().torsion_generator().order();
2^r1 * (2*RR(pi))^r2 * RK * hK / (wK * RR(sqrt(abs(DK))))  

# Intermediate fields: 
K.subfields()[1:-1]

# Galois group: 
K.galois_group(type='pari')

# Frobenius cycle types: 
# to obtain a list of $[e_i,f_i]$ for the factorization of the ideal $p\mathcal{O}_K$ for $p=7$ in Sage:
p = 7; [(e, pr.norm().valuation(p)) for pr,e in K.factor(p)]