21104812

素因数分解:

$2^2\times {\mathrm{53}}^1\times {\mathrm{99551}}^1$

素因数の和:99608

約数の個数: 12

約数和(自身を含む): 37630656

約数和(自身を除く): 16525844

約数列:

[1, 2, 4, 53, 106, 212, 99551, 199102, 398204, 5276203, 10552406, 21104812]

約数ペア:

[(1, 21104812), (2, 10552406), (4, 5276203), (53, 398204), (106, 199102), (212, 99551)]