21908025

素因数分解:

$3^2\times 5^2\times {\mathrm{97369}}^1$

素因数の和:97385

約数の個数: 18

約数和(自身を含む): 39240110

約数和(自身を除く): 17332085

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 225, 97369, 292107, 486845, 876321, 1460535, 2434225, 4381605, 7302675, 21908025]

約数ペア:

[(1, 21908025), (3, 7302675), (5, 4381605), (9, 2434225), (15, 1460535), (25, 876321), (45, 486845), (75, 292107), (225, 97369)]