9 groups of order 19988.
| SmallGroups | group |
|---|---|
| (19988, 1) | C4×C19×C263 #34093307 |
| (19988, 2) | Dic19×C263 #34093308 |
| (19988, 3) | C19×Dic263 #34093309 |
| (19988, 4) | Dic4997 #34093310 |
| (19988, 5) | C22×C19×C263 #34093311 |
| (19988, 6) | D19×D263 #34093312 |
| (19988, 7) | C2×D4997 #34093313 |
| (19988, 8) | C2×D19×C263 #34093314 |
| (19988, 9) | C2×C19×D263 #34093315 |