28079009

素因数分解:

$7^3\times {\mathrm{71}}^1\times {\mathrm{1153}}^1$

素因数の和:1245

約数の個数: 16

約数和(自身を含む): 33235200

約数和(自身を除く): 5156191

約数列:

[1, 7, 49, 71, 343, 497, 1153, 3479, 8071, 24353, 56497, 81863, 395479, 573041, 4011287, 28079009]

約数ペア:

[(1, 28079009), (7, 4011287), (49, 573041), (71, 395479), (343, 81863), (497, 56497), (1153, 24353), (3479, 8071)]