21067870

素因数分解:

$2^1\times 5^1\times {\mathrm{227}}^1\times {\mathrm{9281}}^1$

素因数の和:9515

約数の個数: 16

約数和(自身を含む): 38093328

約数和(自身を除く): 17025458

約数列:

[1, 2, 5, 10, 227, 454, 1135, 2270, 9281, 18562, 46405, 92810, 2106787, 4213574, 10533935, 21067870]

約数ペア:

[(1, 21067870), (2, 10533935), (5, 4213574), (10, 2106787), (227, 92810), (454, 46405), (1135, 18562), (2270, 9281)]