15978521

素因数分解:

${\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{4253}}^1$

素因数の和:4300

約数の個数: 12

約数和(自身を含む): 18283692

約数和(自身を除く): 2305171

約数列:

[1, 13, 17, 221, 289, 3757, 4253, 55289, 72301, 939913, 1229117, 15978521]

約数ペア:

[(1, 15978521), (13, 1229117), (17, 939913), (221, 72301), (289, 55289), (3757, 4253)]