Order 1728.
954 conjugacy classes of subgroups.
The subgroup lattice has 176 nodes — too large to display as a diagram.
Splittings G = N ⋊ H with N normal; H ≅ G/N.
| N | H ≅ G/N | type |
|---|---|---|
| 2. Q8×C9×Dic3 | C2 | semidirect |
| 6. C2×C3×Q8×C9 | C4 | semidirect |
| 25. #5812 | C9 | direct (N × H) |
| 34. C2×Q8×C9 | Dic3 | semidirect |
| 51. Q8×Dic3 | C2×C9 | semidirect |
| 73. C2×C3×Q8 | C4×C9 | semidirect |
| 103. C3×C9 | #519 | semidirect |
| 127. C2×Q8 | C9×Dic3 | semidirect |
| 149. C9 | #5812 | direct (N × H) |
| 170. C3 | C9×#519 | semidirect |
By isomorphism type — maximal subgroups of the same type appear once, whether or not they are normal.
| subgroup | index |
|---|---|
| C22×C3×Q8×C9 | 2 |
| Q8×C9×Dic3 | 2 |
| C9×#926 | 2 |
| C3×#5812 | 3 |
| C9×#519 | 3 |