11 groups of order 20828.
| SmallGroups | group |
|---|---|
| (20828, 1) | C4×C41×C127 #35209723 |
| (20828, 2) | C127×Dic41 #35209724 |
| (20828, 3) | C41×Dic127 #35209725 |
| (20828, 4) | Dic5207 #35209726 |
| (20828, 5) | C22×C41×C127 #35209727 |
| (20828, 6) | C127×#4223 #35209728 |
| (20828, 7) | C127⋊#4223 #35209729 |
| (20828, 8) | D41×D127 #35209730 |
| (20828, 9) | C2×C41×D127 #35209731 |
| (20828, 10) | C2×D41×C127 #35209732 |
| (20828, 11) | C2×D5207 #35209733 |