21821776

素因数分解:

$2^4\times {\mathrm{541}}^1\times {\mathrm{2521}}^1$

素因数の和:3070

約数の個数: 20

約数和(自身を含む): 42374644

約数和(自身を除く): 20552868

約数列:

[1, 2, 4, 8, 16, 541, 1082, 2164, 2521, 4328, 5042, 8656, 10084, 20168, 40336, 1363861, 2727722, 5455444, 10910888, 21821776]

約数ペア:

[(1, 21821776), (2, 10910888), (4, 5455444), (8, 2727722), (16, 1363861), (541, 40336), (1082, 20168), (2164, 10084), (2521, 8656), (4328, 5042)]