12815855

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{2777}}^1$

素因数の和:2866

約数の個数: 16

約数和(自身を含む): 16801344

約数和(自身を除く): 3985489

約数列:

[1, 5, 13, 65, 71, 355, 923, 2777, 4615, 13885, 36101, 180505, 197167, 985835, 2563171, 12815855]

約数ペア:

[(1, 12815855), (5, 2563171), (13, 985835), (65, 197167), (71, 180505), (355, 36101), (923, 13885), (2777, 4615)]