11 groups of order 16988.
| SmallGroups | group |
|---|---|
| (16988, 1) | C4×C31×C137 #30684195 |
| (16988, 2) | Dic31×C137 #30684196 |
| (16988, 3) | C31×Dic137 #30684197 |
| (16988, 4) | Dic4247 #30684198 |
| (16988, 5) | C22×C31×C137 #30684199 |
| (16988, 6) | C31×#10587739 #30684200 |
| (16988, 7) | C31⋊#10587739 #30684201 |
| (16988, 8) | D31×D137 #30684202 |
| (16988, 9) | C2×D4247 #30684203 |
| (16988, 10) | C2×D31×C137 #30684204 |
| (16988, 11) | C2×C31×D137 #30684205 |