21172180

素因数分解:

$2^2\times 5^1\times {\mathrm{293}}^1\times {\mathrm{3613}}^1$

素因数の和:3915

約数の個数: 24

約数和(自身を含む): 44625672

約数和(自身を除く): 23453492

約数列:

[1, 2, 4, 5, 10, 20, 293, 586, 1172, 1465, 2930, 3613, 5860, 7226, 14452, 18065, 36130, 72260, 1058609, 2117218, 4234436, 5293045, 10586090, 21172180]

約数ペア:

[(1, 21172180), (2, 10586090), (4, 5293045), (5, 4234436), (10, 2117218), (20, 1058609), (293, 72260), (586, 36130), (1172, 18065), (1465, 14452), (2930, 7226), (3613, 5860)]