Atkin-Lehner |
23- 41- |
Signs for the Atkin-Lehner involutions |
Class |
21689b |
Isogeny class |
Conductor |
21689 |
Conductor |
∏ cp |
4 |
Product of Tamagawa factors cp |
Δ |
3027737623919303 = 239 · 412 |
Discriminant |
Eigenvalues |
-1 -2 0 0 4 2 -6 4 |
Hecke eigenvalues for primes up to 20 |
Equation |
[1,0,0,-54498,-4124099] |
[a1,a2,a3,a4,a6] |
Generators |
[22068:261329:64] |
Generators of the group modulo torsion |
j |
9938375/1681 |
j-invariant |
L |
2.2374594097053 |
L(r)(E,1)/r! |
Ω |
0.31606623111915 |
Real period |
R |
7.0790840317954 |
Regulator |
r |
1 |
Rank of the group of rational points |
S |
1 |
(Analytic) order of Ш |
t |
2 |
Number of elements in the torsion subgroup |
Twists |
21689c2 |
Quadratic twists by: -23 |