289011107

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{1663}}^1$

素因数の和:1779

約数の個数: 32

約数和(自身を含む): 376356864

約数和(自身を除く): 87345757

約数列:

[1, 7, 11, 37, 61, 77, 259, 407, 427, 671, 1663, 2257, 2849, 4697, 11641, 15799, 18293, 24827, 61531, 101443, 128051, 173789, 430717, 676841, 710101, 1115873, 3753391, 4737887, 7811111, 26273737, 41287301, 289011107]

約数ペア:

[(1, 289011107), (7, 41287301), (11, 26273737), (37, 7811111), (61, 4737887), (77, 3753391), (259, 1115873), (407, 710101), (427, 676841), (671, 430717), (1663, 173789), (2257, 128051), (2849, 101443), (4697, 61531), (11641, 24827), (15799, 18293)]