18 groups of order 42138.
| SmallGroups | group |
|---|---|
| (42138, 1) | C2×C9×C2341 #53727945 |
| (42138, 2) | #53727946 |
| (42138, 3) | C2×#35231050 #53727947 |
| (42138, 4) | D9×C2341 #53727948 |
| (42138, 5) | C9×D2341 #53727949 |
| (42138, 6) | D21069 #53727950 |
| (42138, 7) | C2×C32×C2341 #53727951 |
| (42138, 8) | #53727952 |
| (42138, 9) | C2×#35231052 #53727953 |
| (42138, 10) | C3×D2341⋊C3 #53727954 |
| (42138, 11) | #53727955 |
| (42138, 12) | D3×C2341⋊C3 #53727956 |
| (42138, 13) | C2×C3×C2341⋊C3 #53727957 |
| (42138, 14) | C32×D2341 #53727958 |
| (42138, 15) | C3×D3×C2341 #53727959 |
| (42138, 16) | C3×D7023 #53727960 |
| (42138, 17) | C3⋊D3×C2341 #53727961 |
| (42138, 18) | #53727962 |