The factors of the number 15,371,532 are: 1, 2, 3, 4, 6, 9, 11, 12, 18, 19, 22, 27, 33, 36, 38, 44, 54, 57, 66, 76, 81, 99, 108, 114, 132, 162, 171, 198, 209, 227, 228, 297, 324, 342, 396, 418, 454, 513, 594, 627, 681, 684, 836, 891, 908, 1026, 1188, 1254, 1362, 1539, 1782, 1881, 2043, 2052, 2497, 2508, 2724, 3078, 3564, 3762, 4086, 4313, 4994, 5643, 6129, 6156, 7491, 7524, 8172, 8626, 9988, 11286, 12258, 12939, 14982, 16929, 17252, 18387, 22473, 22572, 24516, 25878, 29964, 33858, 36774, 38817, 44946, 47443, 51756, 67419, 67716, 73548, 77634, 89892, 94886, 116451, 134838, 142329, 155268, 189772, 202257, 232902, 269676, 284658, 349353, 404514, 426987, 465804, 569316, 698706, 809028, 853974, 1280961, 1397412, 1707948, 2561922, 3842883, 5123844, 7685766, 15371532.
If you add them up, you will get the total of 46,347,840.