56220297

素因数分解:

$3^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{20129}}^1$

素因数の和:20165

約数の個数: 24

約数和(自身を含む): 91792800

約数和(自身を除く): 35572503

約数列:

[1, 3, 7, 19, 21, 49, 57, 133, 147, 399, 931, 2793, 20129, 60387, 140903, 382451, 422709, 986321, 1147353, 2677157, 2958963, 8031471, 18740099, 56220297]

約数ペア:

[(1, 56220297), (3, 18740099), (7, 8031471), (19, 2958963), (21, 2677157), (49, 1147353), (57, 986321), (133, 422709), (147, 382451), (399, 140903), (931, 60387), (2793, 20129)]