28865781

素因数分解:

$3^3\times 7^1\times {\mathrm{152729}}^1$

素因数の和:152745

約数の個数: 16

約数和(自身を含む): 48873600

約数和(自身を除く): 20007819

約数列:

[1, 3, 7, 9, 21, 27, 63, 189, 152729, 458187, 1069103, 1374561, 3207309, 4123683, 9621927, 28865781]

約数ペア:

[(1, 28865781), (3, 9621927), (7, 4123683), (9, 3207309), (21, 1374561), (27, 1069103), (63, 458187), (189, 152729)]