20718228

素因数分解:

$2^2\times 3^1\times {\mathrm{139}}^1\times {\mathrm{12421}}^1$

素因数の和:12567

約数の個数: 24

約数和(自身を含む): 48694240

約数和(自身を除く): 27976012

約数列:

[1, 2, 3, 4, 6, 12, 139, 278, 417, 556, 834, 1668, 12421, 24842, 37263, 49684, 74526, 149052, 1726519, 3453038, 5179557, 6906076, 10359114, 20718228]

約数ペア:

[(1, 20718228), (2, 10359114), (3, 6906076), (4, 5179557), (6, 3453038), (12, 1726519), (139, 149052), (278, 74526), (417, 49684), (556, 37263), (834, 24842), (1668, 12421)]