The factors of the number 2,644,992 are: 1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 18, 21, 24, 28, 32, 36, 41, 42, 48, 56, 63, 64, 72, 82, 84, 96, 112, 123, 126, 128, 144, 164, 168, 192, 224, 246, 252, 256, 287, 288, 328, 336, 369, 384, 448, 492, 504, 512, 574, 576, 656, 672, 738, 768, 861, 896, 984, 1008, 1024, 1148, 1152, 1312, 1344, 1476, 1536, 1722, 1792, 1968, 2016, 2296, 2304, 2583, 2624, 2688, 2952, 3072, 3444, 3584, 3936, 4032, 4592, 4608, 5166, 5248, 5376, 5904, 6888, 7168, 7872, 8064, 9184, 9216, 10332, 10496, 10752, 11808, 13776, 15744, 16128, 18368, 20664, 20992, 21504, 23616, 27552, 31488, 32256, 36736, 41328, 41984, 47232, 55104, 62976, 64512, 73472, 82656, 94464, 110208, 125952, 146944, 165312, 188928, 220416, 293888, 330624, 377856, 440832, 661248, 881664, 1322496, 2644992.
If you add them up, you will get the total of 8,941,296.