28747467

素因数分解:

$3^4\times 7^2\times {\mathrm{7243}}^1$

素因数の和:7269

約数の個数: 30

約数和(自身を含む): 49961868

約数和(自身を除く): 21214401

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 81, 147, 189, 441, 567, 1323, 3969, 7243, 21729, 50701, 65187, 152103, 195561, 354907, 456309, 586683, 1064721, 1368927, 3194163, 4106781, 9582489, 28747467]

約数ペア:

[(1, 28747467), (3, 9582489), (7, 4106781), (9, 3194163), (21, 1368927), (27, 1064721), (49, 586683), (63, 456309), (81, 354907), (147, 195561), (189, 152103), (441, 65187), (567, 50701), (1323, 21729), (3969, 7243)]