18686434

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{631}}^1$

素因数の和:730

約数の個数: 32

約数和(自身を含む): 32489856

約数和(自身を除く): 13803422

約数列:

[1, 2, 13, 17, 26, 34, 67, 134, 221, 442, 631, 871, 1139, 1262, 1742, 2278, 8203, 10727, 14807, 16406, 21454, 29614, 42277, 84554, 139451, 278902, 549601, 718709, 1099202, 1437418, 9343217, 18686434]

約数ペア:

[(1, 18686434), (2, 9343217), (13, 1437418), (17, 1099202), (26, 718709), (34, 549601), (67, 278902), (134, 139451), (221, 84554), (442, 42277), (631, 29614), (871, 21454), (1139, 16406), (1262, 14807), (1742, 10727), (2278, 8203)]