218016675

素因数分解:

$3^2\times 5^2\times {\mathrm{968963}}^1$

素因数の和:968979

約数の個数: 18

約数和(自身を含む): 390492492

約数和(自身を除く): 172475817

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 225, 968963, 2906889, 4844815, 8720667, 14534445, 24224075, 43603335, 72672225, 218016675]

約数ペア:

[(1, 218016675), (3, 72672225), (5, 43603335), (9, 24224075), (15, 14534445), (25, 8720667), (45, 4844815), (75, 2906889), (225, 968963)]