20529957

素因数分解:

$3^1\times 7^1\times {\mathrm{647}}^1\times {\mathrm{1511}}^1$

素因数の和:2168

約数の個数: 16

約数和(自身を含む): 31352832

約数和(自身を除く): 10822875

約数列:

[1, 3, 7, 21, 647, 1511, 1941, 4529, 4533, 10577, 13587, 31731, 977617, 2932851, 6843319, 20529957]

約数ペア:

[(1, 20529957), (3, 6843319), (7, 2932851), (21, 977617), (647, 31731), (1511, 13587), (1941, 10577), (4529, 4533)]