21557866

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{20849}}^1$

素因数の和:20909

約数の個数: 16

約数和(自身を含む): 36028800

約数和(自身を除く): 14470934

約数列:

[1, 2, 11, 22, 47, 94, 517, 1034, 20849, 41698, 229339, 458678, 979903, 1959806, 10778933, 21557866]

約数ペア:

[(1, 21557866), (2, 10778933), (11, 1959806), (22, 979903), (47, 458678), (94, 229339), (517, 41698), (1034, 20849)]