15 groups of order 16564.
| SmallGroups | group |
|---|---|
| (16564, 1) | C4×C41×C101 #30658580 |
| (16564, 2) | C101×Dic41 #30658581 |
| (16564, 3) | C41×Dic101 #30658582 |
| (16564, 4) | Dic4141 #30658583 |
| (16564, 5) | C22×C41×C101 #30658584 |
| (16564, 6) | C41×#87938 #30658585 |
| (16564, 7) | C101×#4223 #30658586 |
| (16564, 8) | #30658587 |
| (16564, 9) | #30658588 |
| (16564, 10) | #30658589 |
| (16564, 11) | #30658590 |
| (16564, 12) | D41×D101 #30658591 |
| (16564, 13) | C2×D4141 #30658592 |
| (16564, 14) | C2×D41×C101 #30658593 |
| (16564, 15) | C2×C41×D101 #30658594 |