21581244

素因数分解:

$2^2\times 3^2\times {\mathrm{599479}}^1$

素因数の和:599489

約数の個数: 18

約数和(自身を含む): 54552680

約数和(自身を除く): 32971436

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 599479, 1198958, 1798437, 2397916, 3596874, 5395311, 7193748, 10790622, 21581244]

約数ペア:

[(1, 21581244), (2, 10790622), (3, 7193748), (4, 5395311), (6, 3596874), (9, 2397916), (12, 1798437), (18, 1198958), (36, 599479)]