The factors of the number 5,207,976 are: 1, 2, 3, 4, 6, 8, 9, 12, 18, 19, 24, 27, 36, 38, 47, 54, 57, 72, 76, 81, 94, 108, 114, 141, 152, 162, 171, 188, 216, 228, 243, 282, 324, 342, 376, 423, 456, 486, 513, 564, 648, 684, 729, 846, 893, 972, 1026, 1128, 1269, 1368, 1458, 1539, 1692, 1786, 1944, 2052, 2538, 2679, 2916, 3078, 3384, 3572, 3807, 4104, 4617, 5076, 5358, 5832, 6156, 7144, 7614, 8037, 9234, 10152, 10716, 11421, 12312, 13851, 15228, 16074, 18468, 21432, 22842, 24111, 27702, 30456, 32148, 34263, 36936, 45684, 48222, 55404, 64296, 68526, 72333, 91368, 96444, 110808, 137052, 144666, 192888, 216999, 274104, 289332, 433998, 578664, 650997, 867996, 1301994, 1735992, 2603988, 5207976.
If you add them up, you will get the total of 15,739,200.