20528599

素因数分解:

$7^2\times {\mathrm{13}}^2\times {\mathrm{37}}^1\times {\mathrm{67}}^1$

素因数の和:144

約数の個数: 36

約数和(自身を含む): 26953704

約数和(自身を除く): 6425105

約数列:

[1, 7, 13, 37, 49, 67, 91, 169, 259, 469, 481, 637, 871, 1183, 1813, 2479, 3283, 3367, 6097, 6253, 8281, 11323, 17353, 23569, 32227, 42679, 43771, 79261, 121471, 225589, 306397, 418951, 554827, 1579123, 2932657, 20528599]

約数ペア:

[(1, 20528599), (7, 2932657), (13, 1579123), (37, 554827), (49, 418951), (67, 306397), (91, 225589), (169, 121471), (259, 79261), (469, 43771), (481, 42679), (637, 32227), (871, 23569), (1183, 17353), (1813, 11323), (2479, 8281), (3283, 6253), (3367, 6097)]