21985491

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{139}}^1\times {\mathrm{4793}}^1$

素因数の和:4946

約数の個数: 16

約数和(自身を含む): 32215680

約数和(自身を除く): 10230189

約数列:

[1, 3, 11, 33, 139, 417, 1529, 4587, 4793, 14379, 52723, 158169, 666227, 1998681, 7328497, 21985491]

約数ペア:

[(1, 21985491), (3, 7328497), (11, 1998681), (33, 666227), (139, 158169), (417, 52723), (1529, 14379), (4587, 4793)]