21084225

素因数分解:

$3^1\times 5^2\times {\mathrm{73}}^1\times {\mathrm{3851}}^1$

素因数の和:3937

約数の個数: 24

約数和(自身を含む): 35345952

約数和(自身を除く): 14261727

約数列:

[1, 3, 5, 15, 25, 73, 75, 219, 365, 1095, 1825, 3851, 5475, 11553, 19255, 57765, 96275, 281123, 288825, 843369, 1405615, 4216845, 7028075, 21084225]

約数ペア:

[(1, 21084225), (3, 7028075), (5, 4216845), (15, 1405615), (25, 843369), (73, 288825), (75, 281123), (219, 96275), (365, 57765), (1095, 19255), (1825, 11553), (3851, 5475)]