The factors of the number 4,372,368 are: 1, 2, 3, 4, 6, 7, 8, 11, 12, 13, 14, 16, 21, 22, 24, 26, 28, 33, 39, 42, 44, 48, 49, 52, 56, 66, 77, 78, 84, 88, 91, 98, 104, 112, 132, 143, 147, 154, 156, 168, 169, 176, 182, 196, 208, 231, 264, 273, 286, 294, 308, 312, 336, 338, 364, 392, 429, 462, 507, 528, 539, 546, 572, 588, 616, 624, 637, 676, 728, 784, 858, 924, 1001, 1014, 1078, 1092, 1144, 1176, 1183, 1232, 1274, 1352, 1456, 1617, 1716, 1848, 1859, 1911, 2002, 2028, 2156, 2184, 2288, 2352, 2366, 2548, 2704, 3003, 3234, 3432, 3549, 3696, 3718, 3822, 4004, 4056, 4312, 4368, 4732, 5096, 5577, 6006, 6468, 6864, 7007, 7098, 7436, 7644, 8008, 8112, 8281, 8624, 9464, 10192, 11154, 12012, 12936, 13013, 14014, 14196, 14872, 15288, 16016, 16562, 18928, 21021, 22308, 24024, 24843, 25872, 26026, 28028, 28392, 29744, 30576, 33124, 39039, 42042, 44616, 48048, 49686, 52052, 56056, 56784, 66248, 78078, 84084, 89232, 91091, 99372, 104104, 112112, 132496, 156156, 168168, 182182, 198744, 208208, 273273, 312312, 336336, 364364, 397488, 546546, 624624, 728728, 1093092, 1457456, 2186184, 4372368.
If you add them up, you will get the total of 15,521,328.