20890953

素因数分解:

$3^6\times {\mathrm{28657}}^1$

素因数の和:28675

約数の個数: 14

約数和(自身を含む): 31323194

約数和(自身を除く): 10432241

約数列:

[1, 3, 9, 27, 81, 243, 729, 28657, 85971, 257913, 773739, 2321217, 6963651, 20890953]

約数ペア:

[(1, 20890953), (3, 6963651), (9, 2321217), (27, 773739), (81, 257913), (243, 85971), (729, 28657)]