12990465

素因数分解:

$3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{16981}}^1$

素因数の和:17009

約数の個数: 24

約数和(自身を含む): 23842728

約数和(自身を除く): 10852263

約数列:

[1, 3, 5, 9, 15, 17, 45, 51, 85, 153, 255, 765, 16981, 50943, 84905, 152829, 254715, 288677, 764145, 866031, 1443385, 2598093, 4330155, 12990465]

約数ペア:

[(1, 12990465), (3, 4330155), (5, 2598093), (9, 1443385), (15, 866031), (17, 764145), (45, 288677), (51, 254715), (85, 152829), (153, 84905), (255, 50943), (765, 16981)]