21066070

素因数分解:

$2^1\times 5^1\times {\mathrm{661}}^1\times {\mathrm{3187}}^1$

素因数の和:3855

約数の個数: 16

約数和(自身を含む): 37988208

約数和(自身を除く): 16922138

約数列:

[1, 2, 5, 10, 661, 1322, 3187, 3305, 6374, 6610, 15935, 31870, 2106607, 4213214, 10533035, 21066070]

約数ペア:

[(1, 21066070), (2, 10533035), (5, 4213214), (10, 2106607), (661, 31870), (1322, 15935), (3187, 6610), (3305, 6374)]