28206873

素因数分解:

$3^4\times {\mathrm{479}}^1\times {\mathrm{727}}^1$

素因数の和:1218

約数の個数: 20

約数和(自身を含む): 42282240

約数和(自身を除く): 14075367

約数列:

[1, 3, 9, 27, 81, 479, 727, 1437, 2181, 4311, 6543, 12933, 19629, 38799, 58887, 348233, 1044699, 3134097, 9402291, 28206873]

約数ペア:

[(1, 28206873), (3, 9402291), (9, 3134097), (27, 1044699), (81, 348233), (479, 58887), (727, 38799), (1437, 19629), (2181, 12933), (4311, 6543)]