21660129

素因数分解:

$3^4\times {\mathrm{29}}^1\times {\mathrm{9221}}^1$

素因数の和:9262

約数の個数: 20

約数和(自身を含む): 33475860

約数和(自身を除く): 11815731

約数列:

[1, 3, 9, 27, 29, 81, 87, 261, 783, 2349, 9221, 27663, 82989, 248967, 267409, 746901, 802227, 2406681, 7220043, 21660129]

約数ペア:

[(1, 21660129), (3, 7220043), (9, 2406681), (27, 802227), (29, 746901), (81, 267409), (87, 248967), (261, 82989), (783, 27663), (2349, 9221)]