12 groups of order 21126.
| SmallGroups | group |
|---|---|
| (21126, 1) | C2×C3×C7×C503 #35231614 |
| (21126, 2) | C2×ΓL(1,𝔽8)×C503 #35231615 |
| (21126, 3) | C3×C7×D503 #35231616 |
| (21126, 4) | C3×D7×C503 #35231617 |
| (21126, 5) | C3×D3521 #35231618 |
| (21126, 6) | D3×C7×C503 #35231619 |
| (21126, 7) | C7×D1509 #35231620 |
| (21126, 8) | D21×C503 #35231621 |
| (21126, 9) | D10563 #35231622 |
| (21126, 10) | ΓL(1,𝔽8)×D503 #35231623 |
| (21126, 11) | AGL(1,𝔽7)×C503 #35231624 |
| (21126, 12) | ΓL(1,𝔽8)⋊D503 #35231625 |