198204489

素因数分解:

$3^4\times 7^1\times {\mathrm{349567}}^1$

素因数の和:349586

約数の個数: 20

約数和(自身を含む): 338381824

約数和(自身を除く): 140177335

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 567, 349567, 1048701, 2446969, 3146103, 7340907, 9438309, 22022721, 28314927, 66068163, 198204489]

約数ペア:

[(1, 198204489), (3, 66068163), (7, 28314927), (9, 22022721), (21, 9438309), (27, 7340907), (63, 3146103), (81, 2446969), (189, 1048701), (567, 349567)]