20168687

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{5573}}^1$

素因数の和:5638

約数の個数: 16

約数和(自身を含む): 25684992

約数和(自身を除く): 5516305

約数列:

[1, 7, 11, 47, 77, 329, 517, 3619, 5573, 39011, 61303, 261931, 429121, 1833517, 2881241, 20168687]

約数ペア:

[(1, 20168687), (7, 2881241), (11, 1833517), (47, 429121), (77, 261931), (329, 61303), (517, 39011), (3619, 5573)]