21158631

素因数分解:

$3^3\times {\mathrm{13}}^2\times {\mathrm{4637}}^1$

素因数の和:4672

約数の個数: 24

約数和(自身を含む): 33950160

約数和(自身を除く): 12791529

約数列:

[1, 3, 9, 13, 27, 39, 117, 169, 351, 507, 1521, 4563, 4637, 13911, 41733, 60281, 125199, 180843, 542529, 783653, 1627587, 2350959, 7052877, 21158631]

約数ペア:

[(1, 21158631), (3, 7052877), (9, 2350959), (13, 1627587), (27, 783653), (39, 542529), (117, 180843), (169, 125199), (351, 60281), (507, 41733), (1521, 13911), (4563, 4637)]