12 groups of order 20838.
| SmallGroups | group |
|---|---|
| (20838, 1) | C2×C3×C23×C151 #35209757 |
| (20838, 2) | C2×C23×C151⋊C3 #35209758 |
| (20838, 3) | C3×C23×D151 #35209759 |
| (20838, 4) | C3×D23×C151 #35209760 |
| (20838, 5) | C3×D3473 #35209761 |
| (20838, 6) | D3×C23×C151 #35209762 |
| (20838, 7) | C23×D453 #35209763 |
| (20838, 8) | D69×C151 #35209764 |
| (20838, 9) | D10419 #35209765 |
| (20838, 10) | C23×D151⋊C3 #35209766 |
| (20838, 11) | D23×C151⋊C3 #35209767 |
| (20838, 12) | C23⋊(D151⋊C3) #35209768 |