Order 1728.
702 conjugacy classes of subgroups.
The subgroup lattice has 326 nodes — too large to display as a diagram.
Splittings G = N ⋊ H with N normal; H ≅ G/N.
| N | H ≅ G/N | type |
|---|---|---|
| 39. C2×C9×Dic3 | Q8 | semidirect |
| 42. C2×C3×Dic9 | Q8 | semidirect |
| 122. C2×Dic9 | Dic6 | semidirect |
| 185. C3×C9 | #395 | semidirect |
| 219. C2×Dic3 | Dic18 | semidirect |
| 276. C9 | #4656 | semidirect |
| 318. C3 | #10588659 | semidirect |
By isomorphism type — maximal subgroups of the same type appear once, whether or not they are normal.
| subgroup | index |
|---|---|
| C22×#6226 | 2 |
| C2×C9×Dic3⋊C4 | 2 |
| C2×Dic9⋊Dic3 | 2 |
| C3×C9⋊#95 | 2 |
| #11720331 | 2 |
| #10591354 | 3 |
| #10588659 | 3 |