21299598

素因数分解:

$2^1\times 3^4\times {\mathrm{131479}}^1$

素因数の和:131493

約数の個数: 20

約数和(自身を含む): 47727240

約数和(自身を除く): 26427642

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 81, 162, 131479, 262958, 394437, 788874, 1183311, 2366622, 3549933, 7099866, 10649799, 21299598]

約数ペア:

[(1, 21299598), (2, 10649799), (3, 7099866), (6, 3549933), (9, 2366622), (18, 1183311), (27, 788874), (54, 394437), (81, 262958), (162, 131479)]