12 groups of order 21378.
| SmallGroups | group |
|---|---|
| (21378, 1) | C2×C3×C7×C509 #36338954 |
| (21378, 2) | C2×ΓL(1,𝔽8)×C509 #36338955 |
| (21378, 3) | C3×C7×D509 #36338956 |
| (21378, 4) | C3×D7×C509 #36338957 |
| (21378, 5) | C3×D3563 #36338958 |
| (21378, 6) | D3×C7×C509 #36338959 |
| (21378, 7) | C7×D1527 #36338960 |
| (21378, 8) | D21×C509 #36338961 |
| (21378, 9) | D10689 #36338962 |
| (21378, 10) | ΓL(1,𝔽8)×D509 #36338963 |
| (21378, 11) | AGL(1,𝔽7)×C509 #36338964 |
| (21378, 12) | ΓL(1,𝔽8)⋊D509 #36338965 |