20218491

素因数分解:

$3^4\times {\mathrm{17}}^1\times {\mathrm{14683}}^1$

素因数の和:14712

約数の個数: 20

約数和(自身を含む): 31981752

約数和(自身を除く): 11763261

約数列:

[1, 3, 9, 17, 27, 51, 81, 153, 459, 1377, 14683, 44049, 132147, 249611, 396441, 748833, 1189323, 2246499, 6739497, 20218491]

約数ペア:

[(1, 20218491), (3, 6739497), (9, 2246499), (17, 1189323), (27, 748833), (51, 396441), (81, 249611), (153, 132147), (459, 44049), (1377, 14683)]