12 groups of order 20728.
| SmallGroups | group |
|---|---|
| (20728, 1) | C8×C2591 #35208609 |
| (20728, 2) | C2×C4×C2591 #35208610 |
| (20728, 3) | D4×C2591 #35208611 |
| (20728, 4) | Q8×C2591 #35208612 |
| (20728, 5) | C23×C2591 #35208613 |
| (20728, 6) | C2591⋊C8 #35208614 |
| (20728, 7) | C4×D2591 #35208615 |
| (20728, 8) | C2×Dic2591 #35208616 |
| (20728, 9) | C22⋊D2591 #35208617 |
| (20728, 10) | D10364 #35208618 |
| (20728, 11) | Dic5182 #35208619 |
| (20728, 12) | C22×D2591 #35208620 |