18477220

素因数分解:

$2^2\times 5^1\times {\mathrm{923861}}^1$

素因数の和:923870

約数の個数: 12

約数和(自身を含む): 38802204

約数和(自身を除く): 20324984

約数列:

[1, 2, 4, 5, 10, 20, 923861, 1847722, 3695444, 4619305, 9238610, 18477220]

約数ペア:

[(1, 18477220), (2, 9238610), (4, 4619305), (5, 3695444), (10, 1847722), (20, 923861)]