20451991

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{127031}}^1$

素因数の和:127061

約数の個数: 8

約数和(自身を含む): 24390144

約数和(自身を除く): 3938153

約数列:

[1, 7, 23, 161, 127031, 889217, 2921713, 20451991]

約数ペア:

[(1, 20451991), (7, 2921713), (23, 889217), (161, 127031)]