21103315

素因数分解:

$5^1\times {\mathrm{41}}^1\times {\mathrm{113}}^1\times {\mathrm{911}}^1$

素因数の和:1070

約数の個数: 16

約数和(自身を含む): 26199936

約数和(自身を除く): 5096621

約数列:

[1, 5, 41, 113, 205, 565, 911, 4555, 4633, 23165, 37351, 102943, 186755, 514715, 4220663, 21103315]

約数ペア:

[(1, 21103315), (5, 4220663), (41, 514715), (113, 186755), (205, 102943), (565, 37351), (911, 23165), (4555, 4633)]