217123870

素因数分解:

$2^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{748703}}^1$

素因数の和:748739

約数の個数: 16

約数和(自身を含む): 404300160

約数和(自身を除く): 187176290

約数列:

[1, 2, 5, 10, 29, 58, 145, 290, 748703, 1497406, 3743515, 7487030, 21712387, 43424774, 108561935, 217123870]

約数ペア:

[(1, 217123870), (2, 108561935), (5, 43424774), (10, 21712387), (29, 7487030), (58, 3743515), (145, 1497406), (290, 748703)]