20777391

素因数分解:

$3^4\times {\mathrm{199}}^1\times {\mathrm{1289}}^1$

素因数の和:1500

約数の個数: 20

約数和(自身を含む): 31218000

約数和(自身を除く): 10440609

約数列:

[1, 3, 9, 27, 81, 199, 597, 1289, 1791, 3867, 5373, 11601, 16119, 34803, 104409, 256511, 769533, 2308599, 6925797, 20777391]

約数ペア:

[(1, 20777391), (3, 6925797), (9, 2308599), (27, 769533), (81, 256511), (199, 104409), (597, 34803), (1289, 16119), (1791, 11601), (3867, 5373)]