1218135

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^2\times {\mathrm{281}}^1$

素因数の和:323

約数の個数: 24

約数和(自身を含む): 2077776

約数和(自身を除く): 859641

約数列:

[1, 3, 5, 15, 17, 51, 85, 255, 281, 289, 843, 867, 1405, 1445, 4215, 4335, 4777, 14331, 23885, 71655, 81209, 243627, 406045, 1218135]

約数ペア:

[(1, 1218135), (3, 406045), (5, 243627), (15, 81209), (17, 71655), (51, 23885), (85, 14331), (255, 4777), (281, 4335), (289, 4215), (843, 1445), (867, 1405)]