20851251

素因数分解:

$3^1\times {\mathrm{31}}^1\times {\mathrm{139}}^1\times {\mathrm{1613}}^1$

素因数の和:1786

約数の個数: 16

約数和(自身を含む): 28922880

約数和(自身を除く): 8071629

約数列:

[1, 3, 31, 93, 139, 417, 1613, 4309, 4839, 12927, 50003, 150009, 224207, 672621, 6950417, 20851251]

約数ペア:

[(1, 20851251), (3, 6950417), (31, 672621), (93, 224207), (139, 150009), (417, 50003), (1613, 12927), (4309, 4839)]