21007762

素因数分解:

$2^1\times {\mathrm{521}}^1\times {\mathrm{20161}}^1$

素因数の和:20684

約数の個数: 8

約数和(自身を含む): 31573692

約数和(自身を除く): 10565930

約数列:

[1, 2, 521, 1042, 20161, 40322, 10503881, 21007762]

約数ペア:

[(1, 21007762), (2, 10503881), (521, 40322), (1042, 20161)]