218475

素因数分解:

$3^2\times 5^2\times {\mathrm{971}}^1$

素因数の和:987

約数の個数: 18

約数和(自身を含む): 391716

約数和(自身を除く): 173241

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 225, 971, 2913, 4855, 8739, 14565, 24275, 43695, 72825, 218475]

約数ペア:

[(1, 218475), (3, 72825), (5, 43695), (9, 24275), (15, 14565), (25, 8739), (45, 4855), (75, 2913), (225, 971)]