18240975

素因数分解:

$3^2\times 5^2\times {\mathrm{81071}}^1$

素因数の和:81087

約数の個数: 18

約数和(自身を含む): 32672016

約数和(自身を除く): 14431041

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 225, 81071, 243213, 405355, 729639, 1216065, 2026775, 3648195, 6080325, 18240975]

約数ペア:

[(1, 18240975), (3, 6080325), (5, 3648195), (9, 2026775), (15, 1216065), (25, 729639), (45, 405355), (75, 243213), (225, 81071)]