21000427922

素因数分解:

$2^1\times {\mathrm{155741}}^1\times {\mathrm{67421}}^1$

素因数の和:223164

約数の個数: 8

約数和(自身を含む): 31501311372

約数和(自身を除く): 10500883450

約数列:

[1, 2, 67421, 134842, 155741, 311482, 10500213961, 21000427922]

約数ペア:

[(1, 21000427922), (2, 10500213961), (67421, 311482), (134842, 155741)]