12 groups of order 21990.
| SmallGroups | group |
|---|---|
| (21990, 1) | C2×C3×C5×C733 #36347127 |
| (21990, 2) | C2×C5×C733⋊C3 #36347128 |
| (21990, 3) | C3×C5×D733 #36347129 |
| (21990, 4) | C3×D5×C733 #36347130 |
| (21990, 5) | C3×D3665 #36347131 |
| (21990, 6) | C5×D3×C733 #36347132 |
| (21990, 7) | C5×D2199 #36347133 |
| (21990, 8) | D15×C733 #36347134 |
| (21990, 9) | D10995 #36347135 |
| (21990, 10) | C5×D733⋊C3 #36347136 |
| (21990, 11) | D5×C733⋊C3 #36347137 |
| (21990, 12) | C5⋊(D733⋊C3) #36347138 |