20426991

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{18061}}^1$

素因数の和:18106

約数の個数: 16

約数和(自身を含む): 30344160

約数和(自身を除く): 9917169

約数列:

[1, 3, 13, 29, 39, 87, 377, 1131, 18061, 54183, 234793, 523769, 704379, 1571307, 6808997, 20426991]

約数ペア:

[(1, 20426991), (3, 6808997), (13, 1571307), (29, 704379), (39, 523769), (87, 234793), (377, 54183), (1131, 18061)]