21329529

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{18859}}^1$

素因数の和:18904

約数の個数: 16

約数和(自身を含む): 31684800

約数和(自身を除く): 10355271

約数列:

[1, 3, 13, 29, 39, 87, 377, 1131, 18859, 56577, 245167, 546911, 735501, 1640733, 7109843, 21329529]

約数ペア:

[(1, 21329529), (3, 7109843), (13, 1640733), (29, 735501), (39, 546911), (87, 245167), (377, 56577), (1131, 18859)]