21031866

素因数分解:

$2^1\times 3^3\times {\mathrm{389479}}^1$

素因数の和:389490

約数の個数: 16

約数和(自身を含む): 46737600

約数和(自身を除く): 25705734

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 389479, 778958, 1168437, 2336874, 3505311, 7010622, 10515933, 21031866]

約数ペア:

[(1, 21031866), (2, 10515933), (3, 7010622), (6, 3505311), (9, 2336874), (18, 1168437), (27, 778958), (54, 389479)]