21210397

素因数分解:

${\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{127}}^1\times {\mathrm{443}}^1$

素因数の和:612

約数の個数: 16

約数和(自身を含む): 23869440

約数和(自身を除く): 2659043

約数列:

[1, 13, 29, 127, 377, 443, 1651, 3683, 5759, 12847, 47879, 56261, 167011, 731393, 1631569, 21210397]

約数ペア:

[(1, 21210397), (13, 1631569), (29, 731393), (127, 167011), (377, 56261), (443, 47879), (1651, 12847), (3683, 5759)]