21252530

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{163481}}^1$

素因数の和:163501

約数の個数: 16

約数和(自身を含む): 41197464

約数和(自身を除く): 19944934

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 163481, 326962, 817405, 1634810, 2125253, 4250506, 10626265, 21252530]

約数ペア:

[(1, 21252530), (2, 10626265), (5, 4250506), (10, 2125253), (13, 1634810), (26, 817405), (65, 326962), (130, 163481)]