N = 2197
[C1] non-units [C2] #non-units lead to same
#solution for discriminant
[C3] #solution for discriminant
= non-units in C1
1521, 507, 1690, 676, 169, 2028 6 6422
0 1 4225
1235, 494, 962, 936, 1872, 364, 1768, 975, 650, 572, 715, 1352, 1963, 1118, 2067, 1417, 2002, 1820, 923, 1209, 1027, 1781, 117, 1339, 390, 2080, 1846, 1807, 91, 520, 1716, 416, 130, 1495, 1924, 1560, 611, 273, 845, 1222, 65, 1157, 468, 78, 2054, 182, 429, 1469, 2184, 1742, 728, 1001, 455, 1443, 1365, 871, 1261, 1482, 143, 1079, 208, 1859, 1456, 1625, 377, 910, 312, 1313, 1430, 702, 1534, 1274, 624, 1131, 325, 1586, 1066, 1105, 1599, 338, 533, 1794, 1144, 741, 546, 39, 1300, 1248, 2171, 1703, 442, 481, 1092, 1651, 1040, 1196, 1612, 351, 1638, 299, 260, 1287, 26, 1937, 1391, 767, 1326, 247, 1508, 663, 1885, 2093, 832, 1404, 793, 2015, 754, 1911, 559, 1170, 286, 1547, 2041, 780, 195, 806, 819, 403, 1664, 884, 2145, 1183, 2132, 949, 1898, 637, 1833, 1989, 1378, 858, 2119, 1950, 689, 221, 52, 1677, 1976, 585, 2158, 897, 1755, 1729, 104, 1014, 1053, 234, 988, 2106, 13, 598, 156, 1573 162 2028
C2TC3 = #ways delta can be non-unit 371293
Total non-singular EC over Z2197 = 21972 - #ways delta can be non-unit (C2TC3) = 4455516