477996957

素因数分解:

$3^4\times {\mathrm{2221}}^1\times {\mathrm{2657}}^1$

素因数の和:4890

約数の個数: 20

約数和(自身を含む): 714635196

約数和(自身を除く): 236638239

約数列:

[1, 3, 9, 27, 81, 2221, 2657, 6663, 7971, 19989, 23913, 59967, 71739, 179901, 215217, 5901197, 17703591, 53110773, 159332319, 477996957]

約数ペア:

[(1, 477996957), (3, 159332319), (9, 53110773), (27, 17703591), (81, 5901197), (2221, 215217), (2657, 179901), (6663, 71739), (7971, 59967), (19989, 23913)]