1390571

素因数分解:

$7^2\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{59}}^1$

素因数の和:123

約数の個数: 24

約数和(自身を含む): 1819440

約数和(自身を除く): 428869

約数列:

[1, 7, 13, 37, 49, 59, 91, 259, 413, 481, 637, 767, 1813, 2183, 2891, 3367, 5369, 15281, 23569, 28379, 37583, 106967, 198653, 1390571]

約数ペア:

[(1, 1390571), (7, 198653), (13, 106967), (37, 37583), (49, 28379), (59, 23569), (91, 15281), (259, 5369), (413, 3367), (481, 2891), (637, 2183), (767, 1813)]