The factors of the number 21,214,512 are: 1, 2, 3, 4, 6, 8, 9, 11, 12, 16, 18, 22, 24, 33, 36, 44, 48, 59, 66, 72, 88, 99, 118, 132, 144, 176, 177, 198, 227, 236, 264, 354, 396, 454, 472, 528, 531, 649, 681, 708, 792, 908, 944, 1062, 1298, 1362, 1416, 1584, 1816, 1947, 2043, 2124, 2497, 2596, 2724, 2832, 3632, 3894, 4086, 4248, 4994, 5192, 5448, 5841, 7491, 7788, 8172, 8496, 9988, 10384, 10896, 11682, 13393, 14982, 15576, 16344, 19976, 22473, 23364, 26786, 29964, 31152, 32688, 39952, 40179, 44946, 46728, 53572, 59928, 80358, 89892, 93456, 107144, 119856, 120537, 147323, 160716, 179784, 214288, 241074, 294646, 321432, 359568, 441969, 482148, 589292, 642864, 883938, 964296, 1178584, 1325907, 1767876, 1928592, 2357168, 2651814, 3535752, 5303628, 7071504, 10607256, 21214512.
If you add them up, you will get the total of 66,156,480.