18857435

素因数分解:

$5^1\times {\mathrm{43}}^1\times {\mathrm{139}}^1\times {\mathrm{631}}^1$

素因数の和:818

約数の個数: 16

約数和(自身を含む): 23358720

約数和(自身を除く): 4501285

約数列:

[1, 5, 43, 139, 215, 631, 695, 3155, 5977, 27133, 29885, 87709, 135665, 438545, 3771487, 18857435]

約数ペア:

[(1, 18857435), (5, 3771487), (43, 438545), (139, 135665), (215, 87709), (631, 29885), (695, 27133), (3155, 5977)]