21821244

素因数分解:

$2^2\times 3^1\times {\mathrm{1818437}}^1$

素因数の和:1818444

約数の個数: 12

約数和(自身を含む): 50916264

約数和(自身を除く): 29095020

約数列:

[1, 2, 3, 4, 6, 12, 1818437, 3636874, 5455311, 7273748, 10910622, 21821244]

約数ペア:

[(1, 21821244), (2, 10910622), (3, 7273748), (4, 5455311), (6, 3636874), (12, 1818437)]