2187225

素因数分解:

$3^2\times 5^2\times {\mathrm{9721}}^1$

素因数の和:9737

約数の個数: 18

約数和(自身を含む): 3917966

約数和(自身を除く): 1730741

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 225, 9721, 29163, 48605, 87489, 145815, 243025, 437445, 729075, 2187225]

約数ペア:

[(1, 2187225), (3, 729075), (5, 437445), (9, 243025), (15, 145815), (25, 87489), (45, 48605), (75, 29163), (225, 9721)]