21160436

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{480919}}^1$

素因数の和:480934

約数の個数: 12

約数和(自身を含む): 40397280

約数和(自身を除く): 19236844

約数列:

[1, 2, 4, 11, 22, 44, 480919, 961838, 1923676, 5290109, 10580218, 21160436]

約数ペア:

[(1, 21160436), (2, 10580218), (4, 5290109), (11, 1923676), (22, 961838), (44, 480919)]