21240162

素因数分解:

$2^1\times 3^2\times {\mathrm{1180009}}^1$

素因数の和:1180017

約数の個数: 12

約数和(自身を含む): 46020390

約数和(自身を除く): 24780228

約数列:

[1, 2, 3, 6, 9, 18, 1180009, 2360018, 3540027, 7080054, 10620081, 21240162]

約数ペア:

[(1, 21240162), (2, 10620081), (3, 7080054), (6, 3540027), (9, 2360018), (18, 1180009)]