21744410

素因数分解:

$2^1\times 5^1\times {\mathrm{109}}^1\times {\mathrm{19949}}^1$

素因数の和:20065

約数の個数: 16

約数和(自身を含む): 39501000

約数和(自身を除く): 17756590

約数列:

[1, 2, 5, 10, 109, 218, 545, 1090, 19949, 39898, 99745, 199490, 2174441, 4348882, 10872205, 21744410]

約数ペア:

[(1, 21744410), (2, 10872205), (5, 4348882), (10, 2174441), (109, 199490), (218, 99745), (545, 39898), (1090, 19949)]