The factors of the number 51,222,402 are: 1, 2, 3, 6, 7, 9, 11, 14, 18, 21, 22, 27, 33, 42, 54, 63, 66, 77, 97, 99, 126, 127, 154, 189, 194, 198, 231, 254, 291, 297, 378, 381, 462, 582, 594, 679, 693, 762, 873, 889, 1067, 1143, 1358, 1386, 1397, 1746, 1778, 2037, 2079, 2134, 2286, 2619, 2667, 2794, 3201, 3429, 4074, 4158, 4191, 5238, 5334, 6111, 6402, 6858, 7469, 8001, 8382, 9603, 9779, 12222, 12319, 12573, 14938, 16002, 18333, 19206, 19558, 22407, 24003, 24638, 25146, 28809, 29337, 36666, 36957, 37719, 44814, 48006, 57618, 58674, 67221, 73914, 75438, 86233, 88011, 110871, 134442, 135509, 172466, 176022, 201663, 221742, 258699, 264033, 271018, 332613, 403326, 406527, 517398, 528066, 665226, 776097, 813054, 948563, 1219581, 1552194, 1897126, 2328291, 2439162, 2845689, 3658743, 4656582, 5691378, 7317486, 8537067, 17074134, 25611201, 51222402.
If you add them up, you will get the total of 144,506,880.