20823131

素因数分解:

$7^1\times {\mathrm{29}}^1\times {\mathrm{67}}^1\times {\mathrm{1531}}^1$

素因数の和:1634

約数の個数: 16

約数和(自身を含む): 25002240

約数和(自身を除く): 4179109

約数列:

[1, 7, 29, 67, 203, 469, 1531, 1943, 10717, 13601, 44399, 102577, 310793, 718039, 2974733, 20823131]

約数ペア:

[(1, 20823131), (7, 2974733), (29, 718039), (67, 310793), (203, 102577), (469, 44399), (1531, 13601), (1943, 10717)]