28657659

素因数分解:

$3^1\times {\mathrm{71}}^1\times {\mathrm{83}}^1\times {\mathrm{1621}}^1$

素因数の和:1778

約数の個数: 16

約数和(自身を含む): 39239424

約数和(自身を除く): 10581765

約数列:

[1, 3, 71, 83, 213, 249, 1621, 4863, 5893, 17679, 115091, 134543, 345273, 403629, 9552553, 28657659]

約数ペア:

[(1, 28657659), (3, 9552553), (71, 403629), (83, 345273), (213, 134543), (249, 115091), (1621, 17679), (4863, 5893)]