139117684

素因数分解:

$2^2\times {\mathrm{71}}^1\times {\mathrm{489851}}^1$

素因数の和:489926

約数の個数: 12

約数和(自身を含む): 246885408

約数和(自身を除く): 107767724

約数列:

[1, 2, 4, 71, 142, 284, 489851, 979702, 1959404, 34779421, 69558842, 139117684]

約数ペア:

[(1, 139117684), (2, 69558842), (4, 34779421), (71, 1959404), (142, 979702), (284, 489851)]