Order 1728.
1490 conjugacy classes of subgroups.
The subgroup lattice has 258 nodes — too large to display as a diagram.
Splittings G = N ⋊ H with N normal; H ≅ G/N.
| N | H ≅ G/N | type |
|---|---|---|
| 4. C2×Dic9⋊Dic3 | C2 | direct (N × H) |
| 12. C22×C3×Dic9 | C4 | semidirect |
| 14. Dic9⋊Dic3 | C22 | direct (N × H) |
| 32. C2×C3×Dic9 | C2×C4 | semidirect |
| 52. C22×Dic9 | Dic3 | semidirect |
| 55. C22×C3×C9 | C4⋊C4 | semidirect |
| 62. C3×Dic9 | C22×C4 | semidirect |
| 96. C2×Dic9 | C2×Dic3 | semidirect |
| 99. C2×C3×C9 | C2×C4⋊C4 | semidirect |
| 135. C22×C9 | C4⋊Dic3 | semidirect |
| 143. Dic9 | C22×Dic3 | semidirect |
| 148. C3×C9 | C22×C4⋊C4 | semidirect |
| 183. C2×C9 | C2×C4⋊Dic3 | semidirect |
| 200. C22×C3 | Dic9⋊C4 | semidirect |
| 219. C9 | C22×C4⋊Dic3 | semidirect |
| 234. C2×C3 | C2×Dic9⋊C4 | semidirect |
| 242. C22 | Dic9⋊Dic3 | direct (N × H) |
| 251. C3 | C22×Dic9⋊C4 | semidirect |
| 253. C2 | C2×Dic9⋊Dic3 | direct (N × H) |
By isomorphism type — maximal subgroups of the same type appear once, whether or not they are normal.
| subgroup | index |
|---|---|
| C23×C3⋊Dic9 | 2 |
| C23×C9×Dic3 | 2 |
| C23×C3×Dic9 | 2 |
| C2×Dic9⋊Dic3 | 2 |
| C22×Dic3⋊Dic3 | 3 |
| C22×Dic9⋊C4 | 3 |