19702731

素因数分解:

$3^1\times {\mathrm{89}}^1\times {\mathrm{109}}^1\times {\mathrm{677}}^1$

素因数の和:878

約数の個数: 16

約数和(自身を含む): 26848800

約数和(自身を除く): 7146069

約数列:

[1, 3, 89, 109, 267, 327, 677, 2031, 9701, 29103, 60253, 73793, 180759, 221379, 6567577, 19702731]

約数ペア:

[(1, 19702731), (3, 6567577), (89, 221379), (109, 180759), (267, 73793), (327, 60253), (677, 29103), (2031, 9701)]