The factors of the number 1,333,332 are: 1, 2, 3, 4, 6, 7, 9, 11, 12, 13, 14, 18, 21, 22, 26, 28, 33, 36, 37, 39, 42, 44, 52, 63, 66, 74, 77, 78, 84, 91, 99, 111, 117, 126, 132, 143, 148, 154, 156, 182, 198, 222, 231, 234, 252, 259, 273, 286, 308, 333, 364, 396, 407, 429, 444, 462, 468, 481, 518, 546, 572, 666, 693, 777, 814, 819, 858, 924, 962, 1001, 1036, 1092, 1221, 1287, 1332, 1386, 1443, 1554, 1628, 1638, 1716, 1924, 2002, 2331, 2442, 2574, 2772, 2849, 2886, 3003, 3108, 3276, 3367, 3663, 4004, 4329, 4662, 4884, 5148, 5291, 5698, 5772, 6006, 6734, 7326, 8547, 8658, 9009, 9324, 10101, 10582, 11396, 12012, 13468, 14652, 15873, 17094, 17316, 18018, 20202, 21164, 25641, 30303, 31746, 34188, 36036, 37037, 40404, 47619, 51282, 60606, 63492, 74074, 95238, 102564, 111111, 121212, 148148, 190476, 222222, 333333, 444444, 666666, 1333332.
If you add them up, you will get the total of 4,647,552.