The factors of the number 2,153,844 are: 1, 2, 3, 4, 6, 7, 9, 11, 12, 14, 18, 21, 22, 27, 28, 33, 36, 37, 42, 44, 49, 54, 63, 66, 74, 77, 84, 98, 99, 108, 111, 126, 132, 147, 148, 154, 189, 196, 198, 222, 231, 252, 259, 294, 297, 308, 333, 378, 396, 407, 441, 444, 462, 518, 539, 588, 594, 666, 693, 756, 777, 814, 882, 924, 999, 1036, 1078, 1188, 1221, 1323, 1332, 1386, 1554, 1617, 1628, 1764, 1813, 1998, 2079, 2156, 2331, 2442, 2646, 2772, 2849, 3108, 3234, 3626, 3663, 3996, 4158, 4662, 4851, 4884, 5292, 5439, 5698, 6468, 6993, 7252, 7326, 8316, 8547, 9324, 9702, 10878, 10989, 11396, 13986, 14553, 14652, 16317, 17094, 19404, 19943, 21756, 21978, 25641, 27972, 29106, 32634, 34188, 39886, 43956, 48951, 51282, 58212, 59829, 65268, 76923, 79772, 97902, 102564, 119658, 153846, 179487, 195804, 239316, 307692, 358974, 538461, 717948, 1076922, 2153844.
If you add them up, you will get the total of 7,277,760.