The factors of the number 2,737,728 are: 1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 18, 21, 24, 28, 32, 36, 42, 48, 49, 56, 63, 64, 72, 84, 96, 97, 98, 112, 126, 144, 147, 168, 192, 194, 196, 224, 252, 288, 291, 294, 336, 388, 392, 441, 448, 504, 576, 582, 588, 672, 679, 776, 784, 873, 882, 1008, 1164, 1176, 1344, 1358, 1552, 1568, 1746, 1764, 2016, 2037, 2328, 2352, 2716, 3104, 3136, 3492, 3528, 4032, 4074, 4656, 4704, 4753, 5432, 6111, 6208, 6984, 7056, 8148, 9312, 9408, 9506, 10864, 12222, 13968, 14112, 14259, 16296, 18624, 19012, 21728, 24444, 27936, 28224, 28518, 32592, 38024, 42777, 43456, 48888, 55872, 57036, 65184, 76048, 85554, 97776, 114072, 130368, 152096, 171108, 195552, 228144, 304192, 342216, 391104, 456288, 684432, 912576, 1368864, 2737728.
If you add them up, you will get the total of 9,222,486.