28320663

素因数分解:

$3^1\times 7^1\times {\mathrm{809}}^1\times {\mathrm{1667}}^1$

素因数の和:2486

約数の個数: 16

約数和(自身を含む): 43234560

約数和(自身を除く): 14913897

約数列:

[1, 3, 7, 21, 809, 1667, 2427, 5001, 5663, 11669, 16989, 35007, 1348603, 4045809, 9440221, 28320663]

約数ペア:

[(1, 28320663), (3, 9440221), (7, 4045809), (21, 1348603), (809, 35007), (1667, 16989), (2427, 11669), (5001, 5663)]