17957781

素因数分解:

$3^4\times {\mathrm{73}}^1\times {\mathrm{3037}}^1$

素因数の和:3122

約数の個数: 20

約数和(自身を含む): 27202252

約数和(自身を除く): 9244471

約数列:

[1, 3, 9, 27, 73, 81, 219, 657, 1971, 3037, 5913, 9111, 27333, 81999, 221701, 245997, 665103, 1995309, 5985927, 17957781]

約数ペア:

[(1, 17957781), (3, 5985927), (9, 1995309), (27, 665103), (73, 245997), (81, 221701), (219, 81999), (657, 27333), (1971, 9111), (3037, 5913)]