21288635

素因数分解:

$5^1\times {\mathrm{41}}^1\times {\mathrm{113}}^1\times {\mathrm{919}}^1$

素因数の和:1078

約数の個数: 16

約数和(自身を含む): 26429760

約数和(自身を除く): 5141125

約数列:

[1, 5, 41, 113, 205, 565, 919, 4595, 4633, 23165, 37679, 103847, 188395, 519235, 4257727, 21288635]

約数ペア:

[(1, 21288635), (5, 4257727), (41, 519235), (113, 188395), (205, 103847), (565, 37679), (919, 23165), (4595, 4633)]