Order 1728.
418 conjugacy classes of subgroups.
The subgroup lattice has 230 nodes — too large to display as a diagram.
Splittings G = N ⋊ H with N normal; H ≅ G/N.
| N | H ≅ G/N | type |
|---|---|---|
| 3. C9×#818 | C2 | semidirect |
| 4. C9×#817 | C2 | semidirect |
| 8. C2×C3×C8×C9 | C4 | semidirect |
| 32. #5106 | C9 | direct (N × H) |
| 45. C2×C8×C9 | Dic3 | semidirect |
| 65. #818 | C2×C9 | semidirect |
| 66. #817 | C2×C9 | semidirect |
| 100. C2×C3×C8 | C4×C9 | semidirect |
| 136. C3×C9 | #427 | semidirect |
| 170. C2×C8 | C9×Dic3 | semidirect |
| 198. C9 | #5106 | direct (N × H) |
| 224. C3 | C9×#427 | semidirect |
By isomorphism type — maximal subgroups of the same type appear once, whether or not they are normal.
| subgroup | index |
|---|---|
| C22×C3×C8×C9 | 2 |
| C9×#926 | 2 |
| C9×#818 | 2 |
| C9×#817 | 2 |
| C3×#5106 | 3 |
| C9×#427 | 3 |