25491557

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{67}}^1\times {\mathrm{113}}^1$

素因数の和:237

約数の個数: 32

約数和(自身を含む): 32992512

約数和(自身を除く): 7500955

約数列:

[1, 7, 13, 37, 67, 91, 113, 259, 469, 481, 791, 871, 1469, 2479, 3367, 4181, 6097, 7571, 10283, 17353, 29267, 32227, 52997, 54353, 98423, 225589, 280127, 380471, 688961, 1960889, 3641651, 25491557]

約数ペア:

[(1, 25491557), (7, 3641651), (13, 1960889), (37, 688961), (67, 380471), (91, 280127), (113, 225589), (259, 98423), (469, 54353), (481, 52997), (791, 32227), (871, 29267), (1469, 17353), (2479, 10283), (3367, 7571), (4181, 6097)]