28921293

素因数分解:

$3^4\times {\mathrm{277}}^1\times {\mathrm{1289}}^1$

素因数の和:1578

約数の個数: 20

約数和(自身を含む): 43393020

約数和(自身を除く): 14471727

約数列:

[1, 3, 9, 27, 81, 277, 831, 1289, 2493, 3867, 7479, 11601, 22437, 34803, 104409, 357053, 1071159, 3213477, 9640431, 28921293]

約数ペア:

[(1, 28921293), (3, 9640431), (9, 3213477), (27, 1071159), (81, 357053), (277, 104409), (831, 34803), (1289, 22437), (2493, 11601), (3867, 7479)]