21010690

素因数分解:

$2^1\times 5^1\times {\mathrm{1129}}^1\times {\mathrm{1861}}^1$

素因数の和:2997

約数の個数: 16

約数和(自身を含む): 37873080

約数和(自身を除く): 16862390

約数列:

[1, 2, 5, 10, 1129, 1861, 2258, 3722, 5645, 9305, 11290, 18610, 2101069, 4202138, 10505345, 21010690]

約数ペア:

[(1, 21010690), (2, 10505345), (5, 4202138), (10, 2101069), (1129, 18610), (1861, 11290), (2258, 9305), (3722, 5645)]