21993569

素因数分解:

${\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{137}}^1\times {\mathrm{233}}^1$

素因数の和:436

約数の個数: 16

約数和(自身を含む): 24412752

約数和(自身を除く): 2419183

約数列:

[1, 13, 53, 137, 233, 689, 1781, 3029, 7261, 12349, 31921, 94393, 160537, 414973, 1691813, 21993569]

約数ペア:

[(1, 21993569), (13, 1691813), (53, 414973), (137, 160537), (233, 94393), (689, 31921), (1781, 12349), (3029, 7261)]