908415

素因数分解:

$3^4\times 5^1\times {\mathrm{2243}}^1$

素因数の和:2260

約数の個数: 20

約数和(自身を含む): 1629144

約数和(自身を除く): 720729

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 2243, 6729, 11215, 20187, 33645, 60561, 100935, 181683, 302805, 908415]

約数ペア:

[(1, 908415), (3, 302805), (5, 181683), (9, 100935), (15, 60561), (27, 33645), (45, 20187), (81, 11215), (135, 6729), (405, 2243)]