28282689

素因数分解:

$3^4\times {\mathrm{37}}^1\times {\mathrm{9437}}^1$

素因数の和:9486

約数の個数: 20

約数和(自身を含む): 43395924

約数和(自身を除く): 15113235

約数列:

[1, 3, 9, 27, 37, 81, 111, 333, 999, 2997, 9437, 28311, 84933, 254799, 349169, 764397, 1047507, 3142521, 9427563, 28282689]

約数ペア:

[(1, 28282689), (3, 9427563), (9, 3142521), (27, 1047507), (37, 764397), (81, 349169), (111, 254799), (333, 84933), (999, 28311), (2997, 9437)]