21027375

素因数分解:

$3^2\times 5^3\times {\mathrm{18691}}^1$

素因数の和:18712

約数の個数: 24

約数和(自身を含む): 37907376

約数和(自身を除く): 16880001

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 125, 225, 375, 1125, 18691, 56073, 93455, 168219, 280365, 467275, 841095, 1401825, 2336375, 4205475, 7009125, 21027375]

約数ペア:

[(1, 21027375), (3, 7009125), (5, 4205475), (9, 2336375), (15, 1401825), (25, 841095), (45, 467275), (75, 280365), (125, 168219), (225, 93455), (375, 56073), (1125, 18691)]