The factors of the number 6,743,968 are: 1, 2, 4, 7, 8, 11, 14, 16, 17, 22, 23, 28, 32, 34, 44, 46, 49, 56, 68, 77, 88, 92, 98, 112, 119, 136, 154, 161, 176, 184, 187, 196, 224, 238, 253, 272, 308, 322, 352, 368, 374, 391, 392, 476, 506, 539, 544, 616, 644, 736, 748, 782, 784, 833, 952, 1012, 1078, 1127, 1232, 1288, 1309, 1496, 1564, 1568, 1666, 1771, 1904, 2024, 2156, 2254, 2464, 2576, 2618, 2737, 2992, 3128, 3332, 3542, 3808, 4048, 4301, 4312, 4508, 5152, 5236, 5474, 5984, 6256, 6664, 7084, 8096, 8602, 8624, 9016, 9163, 10472, 10948, 12397, 12512, 13328, 14168, 17204, 17248, 18032, 18326, 19159, 20944, 21896, 24794, 26656, 28336, 30107, 34408, 36064, 36652, 38318, 41888, 43792, 49588, 56672, 60214, 68816, 73304, 76636, 87584, 99176, 120428, 137632, 146608, 153272, 198352, 210749, 240856, 293216, 306544, 396704, 421498, 481712, 613088, 842996, 963424, 1685992, 3371984, 6743968.
If you add them up, you will get the total of 18,615,744.