20785639

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{131}}^1\times {\mathrm{1193}}^1$

素因数の和:1350

約数の個数: 16

約数和(自身を含む): 25217280

約数和(自身を除く): 4431641

約数列:

[1, 7, 19, 131, 133, 917, 1193, 2489, 8351, 17423, 22667, 156283, 158669, 1093981, 2969377, 20785639]

約数ペア:

[(1, 20785639), (7, 2969377), (19, 1093981), (131, 158669), (133, 156283), (917, 22667), (1193, 17423), (2489, 8351)]