217508715

素因数分解:

$3^2\times 5^1\times {\mathrm{47}}^1\times {\mathrm{102841}}^1$

素因数の和:102899

約数の個数: 24

約数和(自身を含む): 385040448

約数和(自身を除く): 167531733

約数列:

[1, 3, 5, 9, 15, 45, 47, 141, 235, 423, 705, 2115, 102841, 308523, 514205, 925569, 1542615, 4627845, 4833527, 14500581, 24167635, 43501743, 72502905, 217508715]

約数ペア:

[(1, 217508715), (3, 72502905), (5, 43501743), (9, 24167635), (15, 14500581), (45, 4833527), (47, 4627845), (141, 1542615), (235, 925569), (423, 514205), (705, 308523), (2115, 102841)]