28257866

素因数分解:

$2^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{139}}^1\times {\mathrm{1117}}^1$

素因数の和:1278

約数の個数: 32

約数和(自身を含む): 52590720

約数和(自身を除く): 24332854

約数列:

[1, 2, 7, 13, 14, 26, 91, 139, 182, 278, 973, 1117, 1807, 1946, 2234, 3614, 7819, 12649, 14521, 15638, 25298, 29042, 101647, 155263, 203294, 310526, 1086841, 2018419, 2173682, 4036838, 14128933, 28257866]

約数ペア:

[(1, 28257866), (2, 14128933), (7, 4036838), (13, 2173682), (14, 2018419), (26, 1086841), (91, 310526), (139, 203294), (182, 155263), (278, 101647), (973, 29042), (1117, 25298), (1807, 15638), (1946, 14521), (2234, 12649), (3614, 7819)]