206665721857

素因数分解:

$7^2\times {\mathrm{103}}^1\times {\mathrm{193}}^1\times {\mathrm{212167}}^1$

素因数の和:212477

約数の個数: 24

約数和(自身を含む): 243999989376

約数和(自身を除く): 37334267519

約数列:

[1, 7, 49, 103, 193, 721, 1351, 5047, 9457, 19879, 139153, 212167, 974071, 1485169, 10396183, 21853201, 40948231, 152972407, 286637617, 1070806849, 2006463319, 4217667793, 29523674551, 206665721857]

約数ペア:

[(1, 206665721857), (7, 29523674551), (49, 4217667793), (103, 2006463319), (193, 1070806849), (721, 286637617), (1351, 152972407), (5047, 40948231), (9457, 21853201), (19879, 10396183), (139153, 1485169), (212167, 974071)]