19965416

素因数分解:

$2^3\times {\mathrm{43}}^1\times {\mathrm{127}}^1\times {\mathrm{457}}^1$

素因数の和:633

約数の個数: 32

約数和(自身を含む): 38691840

約数和(自身を除く): 18726424

約数列:

[1, 2, 4, 8, 43, 86, 127, 172, 254, 344, 457, 508, 914, 1016, 1828, 3656, 5461, 10922, 19651, 21844, 39302, 43688, 58039, 78604, 116078, 157208, 232156, 464312, 2495677, 4991354, 9982708, 19965416]

約数ペア:

[(1, 19965416), (2, 9982708), (4, 4991354), (8, 2495677), (43, 464312), (86, 232156), (127, 157208), (172, 116078), (254, 78604), (344, 58039), (457, 43688), (508, 39302), (914, 21844), (1016, 19651), (1828, 10922), (3656, 5461)]