221710275

素因数分解:

$3^2\times 5^2\times {\mathrm{985379}}^1$

素因数の和:985395

約数の個数: 18

約数和(自身を含む): 397108140

約数和(自身を除く): 175397865

約数列:

[1, 3, 5, 9, 15, 25, 45, 75, 225, 985379, 2956137, 4926895, 8868411, 14780685, 24634475, 44342055, 73903425, 221710275]

約数ペア:

[(1, 221710275), (3, 73903425), (5, 44342055), (9, 24634475), (15, 14780685), (25, 8868411), (45, 4926895), (75, 2956137), (225, 985379)]