The factors of the number 20,809,008 are: 1, 2, 3, 4, 6, 8, 9, 11, 12, 16, 18, 22, 24, 27, 29, 33, 36, 44, 48, 54, 58, 66, 72, 87, 88, 99, 108, 116, 132, 144, 151, 174, 176, 198, 216, 232, 261, 264, 297, 302, 319, 348, 396, 432, 453, 464, 522, 528, 594, 604, 638, 696, 783, 792, 906, 957, 1044, 1188, 1208, 1276, 1359, 1392, 1566, 1584, 1661, 1812, 1914, 2088, 2376, 2416, 2552, 2718, 2871, 3132, 3322, 3624, 3828, 4077, 4176, 4379, 4752, 4983, 5104, 5436, 5742, 6264, 6644, 7248, 7656, 8154, 8613, 8758, 9966, 10872, 11484, 12528, 13137, 13288, 14949, 15312, 16308, 17226, 17516, 19932, 21744, 22968, 26274, 26576, 29898, 32616, 34452, 35032, 39411, 39864, 44847, 45936, 48169, 52548, 59796, 65232, 68904, 70064, 78822, 79728, 89694, 96338, 105096, 118233, 119592, 137808, 144507, 157644, 179388, 192676, 210192, 236466, 239184, 289014, 315288, 358776, 385352, 433521, 472932, 578028, 630576, 717552, 770704, 867042, 945864, 1156056, 1300563, 1734084, 1891728, 2312112, 2601126, 3468168, 5202252, 6936336, 10404504, 20809008.
If you add them up, you will get the total of 67,852,800.