Order 1728.
526 conjugacy classes of subgroups.
The subgroup lattice has 308 nodes — too large to display as a diagram.
Splittings G = N ⋊ H with N normal; H ≅ G/N.
| N | H ≅ G/N | type |
|---|---|---|
| 42. #4661 | C9 | direct (N × H) |
| 172. C3×C9 | #398 | semidirect |
| 259. C9 | #4661 | direct (N × H) |
| 300. C3 | C9×#398 | semidirect |
By isomorphism type — maximal subgroups of the same type appear once, whether or not they are normal.
| subgroup | index |
|---|---|
| C2×C9×C4⋊Dic3 | 2 |
| C2×C9×Dic3⋊C4 | 2 |
| C3×C9×#95 | 2 |
| C9×C3⋊#95 | 2 |
| C3×#4661 | 3 |
| C9×#398 | 3 |