2811809

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{53}}^2$

素因数の和:137

約数の個数: 24

約数和(自身を含む): 3847872

約数和(自身を除く): 1036063

約数列:

[1, 7, 11, 13, 53, 77, 91, 143, 371, 583, 689, 1001, 2809, 4081, 4823, 7579, 19663, 30899, 36517, 53053, 216293, 255619, 401687, 2811809]

約数ペア:

[(1, 2811809), (7, 401687), (11, 255619), (13, 216293), (53, 53053), (77, 36517), (91, 30899), (143, 19663), (371, 7579), (583, 4823), (689, 4081), (1001, 2809)]