21031858205

素因数分解:

$5^1\times {\mathrm{71}}^1\times {\mathrm{59244671}}^1$

素因数の和:59244747

約数の個数: 8

約数和(自身を含む): 25593698304

約数和(自身を除く): 4561840099

約数列:

[1, 5, 71, 355, 59244671, 296223355, 4206371641, 21031858205]

約数ペア:

[(1, 21031858205), (5, 4206371641), (71, 296223355), (355, 59244671)]