15 groups of order 19820.
| SmallGroups | group |
|---|---|
| (19820, 1) | C4×C5×C991 #34090515 |
| (19820, 2) | Dic991⋊C5 #34090516 |
| (19820, 3) | C4×C991⋊C5 #34090517 |
| (19820, 4) | Dic5×C991 #34090518 |
| (19820, 5) | C5×Dic991 #34090519 |
| (19820, 6) | Dic4955 #34090520 |
| (19820, 7) | C22×C5×C991 #34090521 |
| (19820, 8) | C2×D991⋊C5 #34090522 |
| (19820, 9) | C22×C991⋊C5 #34090523 |
| (19820, 10) | AGL(1,𝔽5)×C991 #34090524 |
| (19820, 11) | C991⋊AGL(1,𝔽5) #34090525 |
| (19820, 12) | D5×D991 #34090526 |
| (19820, 13) | C2×D4955 #34090527 |
| (19820, 14) | C2×D5×C991 #34090528 |
| (19820, 15) | C2×C5×D991 #34090529 |