20871530

素因数分解:

$2^1\times 5^1\times {\mathrm{379}}^1\times {\mathrm{5507}}^1$

素因数の和:5893

約数の個数: 16

約数和(自身を含む): 37674720

約数和(自身を除く): 16803190

約数列:

[1, 2, 5, 10, 379, 758, 1895, 3790, 5507, 11014, 27535, 55070, 2087153, 4174306, 10435765, 20871530]

約数ペア:

[(1, 20871530), (2, 10435765), (5, 4174306), (10, 2087153), (379, 55070), (758, 27535), (1895, 11014), (3790, 5507)]