78643467

素因数分解:

$3^4\times 7^1\times {\mathrm{53}}^1\times {\mathrm{2617}}^1$

素因数の和:2689

約数の個数: 40

約数和(自身を含む): 136848096

約数和(自身を除く): 58204629

約数列:

[1, 3, 7, 9, 21, 27, 53, 63, 81, 159, 189, 371, 477, 567, 1113, 1431, 2617, 3339, 4293, 7851, 10017, 18319, 23553, 30051, 54957, 70659, 138701, 164871, 211977, 416103, 494613, 970907, 1248309, 1483839, 2912721, 3744927, 8738163, 11234781, 26214489, 78643467]

約数ペア:

[(1, 78643467), (3, 26214489), (7, 11234781), (9, 8738163), (21, 3744927), (27, 2912721), (53, 1483839), (63, 1248309), (81, 970907), (159, 494613), (189, 416103), (371, 211977), (477, 164871), (567, 138701), (1113, 70659), (1431, 54957), (2617, 30051), (3339, 23553), (4293, 18319), (7851, 10017)]