20528181

素因数分解:

$3^3\times {\mathrm{863}}^1\times {\mathrm{881}}^1$

素因数の和:1753

約数の個数: 16

約数和(自身を含む): 30481920

約数和(自身を除く): 9953739

約数列:

[1, 3, 9, 27, 863, 881, 2589, 2643, 7767, 7929, 23301, 23787, 760303, 2280909, 6842727, 20528181]

約数ペア:

[(1, 20528181), (3, 6842727), (9, 2280909), (27, 760303), (863, 23787), (881, 23301), (2589, 7929), (2643, 7767)]