11 groups of order 20853.
| SmallGroups | group |
|---|---|
| (20853, 1) | C7×C9×C331 #35209885 |
| (20853, 2) | C7⋊C9×C331 #35209886 |
| (20853, 3) | C7×C331⋊C9 #35209887 |
| (20853, 4) | #35209888 |
| (20853, 5) | #35209889 |
| (20853, 6) | C32×C7×C331 #35209890 |
| (20853, 7) | ΓL(1,𝔽8)×C331⋊C3 #35209891 |
| (20853, 8) | C3×C7×C331⋊C3 #35209892 |
| (20853, 9) | C3×ΓL(1,𝔽8)×C331 #35209893 |
| (20853, 10) | C3×#20294330 #35209894 |
| (20853, 11) | C3×#20294329 #35209895 |