856121

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{157}}^1$

素因数の和:224

約数の個数: 16

約数和(自身を含む): 1061760

約数和(自身を除く): 205639

約数列:

[1, 7, 19, 41, 133, 157, 287, 779, 1099, 2983, 5453, 6437, 20881, 45059, 122303, 856121]

約数ペア:

[(1, 856121), (7, 122303), (19, 45059), (41, 20881), (133, 6437), (157, 5453), (287, 2983), (779, 1099)]