18023995

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{521}}^1$

素因数の和:591

約数の個数: 32

約数和(自身を含む): 25707456

約数和(自身を除く): 7683461

約数列:

[1, 5, 11, 17, 37, 55, 85, 185, 187, 407, 521, 629, 935, 2035, 2605, 3145, 5731, 6919, 8857, 19277, 28655, 34595, 44285, 96385, 97427, 212047, 327709, 487135, 1060235, 1638545, 3604799, 18023995]

約数ペア:

[(1, 18023995), (5, 3604799), (11, 1638545), (17, 1060235), (37, 487135), (55, 327709), (85, 212047), (185, 97427), (187, 96385), (407, 44285), (521, 34595), (629, 28655), (935, 19277), (2035, 8857), (2605, 6919), (3145, 5731)]