28913781

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{643}}^1\times {\mathrm{1153}}^1$

素因数の和:1812

約数の個数: 16

約数和(自身を含む): 41617856

約数和(自身を除く): 12704075

約数列:

[1, 3, 13, 39, 643, 1153, 1929, 3459, 8359, 14989, 25077, 44967, 741379, 2224137, 9637927, 28913781]

約数ペア:

[(1, 28913781), (3, 9637927), (13, 2224137), (39, 741379), (643, 44967), (1153, 25077), (1929, 14989), (3459, 8359)]