8918991

素因数分解:

$3^4\times {\mathrm{149}}^1\times {\mathrm{739}}^1$

素因数の和:900

約数の個数: 20

約数和(自身を含む): 13431000

約数和(自身を除く): 4512009

約数列:

[1, 3, 9, 27, 81, 149, 447, 739, 1341, 2217, 4023, 6651, 12069, 19953, 59859, 110111, 330333, 990999, 2972997, 8918991]

約数ペア:

[(1, 8918991), (3, 2972997), (9, 990999), (27, 330333), (81, 110111), (149, 59859), (447, 19953), (739, 12069), (1341, 6651), (2217, 4023)]