21288069

素因数分解:

$3^3\times {\mathrm{11}}^1\times {\mathrm{229}}^1\times {\mathrm{313}}^1$

素因数の和:562

約数の個数: 32

約数和(自身を含む): 34665600

約数和(自身を除く): 13377531

約数列:

[1, 3, 9, 11, 27, 33, 99, 229, 297, 313, 687, 939, 2061, 2519, 2817, 3443, 6183, 7557, 8451, 10329, 22671, 30987, 68013, 71677, 92961, 215031, 645093, 788447, 1935279, 2365341, 7096023, 21288069]

約数ペア:

[(1, 21288069), (3, 7096023), (9, 2365341), (11, 1935279), (27, 788447), (33, 645093), (99, 215031), (229, 92961), (297, 71677), (313, 68013), (687, 30987), (939, 22671), (2061, 10329), (2519, 8451), (2817, 7557), (3443, 6183)]