218655

素因数分解:

$3^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{113}}^1$

素因数の和:167

約数の個数: 24

約数和(自身を含む): 391248

約数和(自身を除く): 172593

約数列:

[1, 3, 5, 9, 15, 43, 45, 113, 129, 215, 339, 387, 565, 645, 1017, 1695, 1935, 4859, 5085, 14577, 24295, 43731, 72885, 218655]

約数ペア:

[(1, 218655), (3, 72885), (5, 43731), (9, 24295), (15, 14577), (43, 5085), (45, 4859), (113, 1935), (129, 1695), (215, 1017), (339, 645), (387, 565)]