28986489

素因数分解:

$3^2\times 7^2\times {\mathrm{65729}}^1$

素因数の和:65749

約数の個数: 18

約数和(自身を含む): 48705930

約数和(自身を除く): 19719441

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 441, 65729, 197187, 460103, 591561, 1380309, 3220721, 4140927, 9662163, 28986489]

約数ペア:

[(1, 28986489), (3, 9662163), (7, 4140927), (9, 3220721), (21, 1380309), (49, 591561), (63, 460103), (147, 197187), (441, 65729)]