66558121

素因数分解:

$7^4\times {\mathrm{19}}^1\times {\mathrm{1459}}^1$

素因数の和:1506

約数の個数: 20

約数和(自身を含む): 81789200

約数和(自身を除く): 15231079

約数列:

[1, 7, 19, 49, 133, 343, 931, 1459, 2401, 6517, 10213, 27721, 45619, 71491, 194047, 500437, 1358329, 3503059, 9508303, 66558121]

約数ペア:

[(1, 66558121), (7, 9508303), (19, 3503059), (49, 1358329), (133, 500437), (343, 194047), (931, 71491), (1459, 45619), (2401, 27721), (6517, 10213)]