21715698069

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{773}}^1\times {\mathrm{240109}}^1$

素因数の和:240901

約数の個数: 24

約数和(自身を含む): 33823815480

約数和(自身を除く): 12108117411

約数列:

[1, 3, 9, 13, 39, 117, 773, 2319, 6957, 10049, 30147, 90441, 240109, 720327, 2160981, 3121417, 9364251, 28092753, 185604257, 556812771, 1670438313, 2412855341, 7238566023, 21715698069]

約数ペア:

[(1, 21715698069), (3, 7238566023), (9, 2412855341), (13, 1670438313), (39, 556812771), (117, 185604257), (773, 28092753), (2319, 9364251), (6957, 3121417), (10049, 2160981), (30147, 720327), (90441, 240109)]