403988

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{457}}^1$

素因数の和:491

約数の個数: 24

約数和(自身を含む): 807912

約数和(自身を除く): 403924

約数列:

[1, 2, 4, 13, 17, 26, 34, 52, 68, 221, 442, 457, 884, 914, 1828, 5941, 7769, 11882, 15538, 23764, 31076, 100997, 201994, 403988]

約数ペア:

[(1, 403988), (2, 201994), (4, 100997), (13, 31076), (17, 23764), (26, 15538), (34, 11882), (52, 7769), (68, 5941), (221, 1828), (442, 914), (457, 884)]