The factors of the number 15,622,416 are: 1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 27, 29, 36, 43, 48, 54, 58, 72, 86, 87, 108, 116, 129, 144, 172, 174, 216, 232, 258, 261, 344, 348, 387, 432, 464, 516, 522, 688, 696, 774, 783, 841, 1032, 1044, 1161, 1247, 1392, 1548, 1566, 1682, 2064, 2088, 2322, 2494, 2523, 3096, 3132, 3364, 3741, 4176, 4644, 4988, 5046, 6192, 6264, 6728, 7482, 7569, 9288, 9976, 10092, 11223, 12528, 13456, 14964, 15138, 18576, 19952, 20184, 22446, 22707, 29928, 30276, 33669, 36163, 40368, 44892, 45414, 59856, 60552, 67338, 72326, 89784, 90828, 108489, 121104, 134676, 144652, 179568, 181656, 216978, 269352, 289304, 325467, 363312, 433956, 538704, 578608, 650934, 867912, 976401, 1301868, 1735824, 1952802, 2603736, 3905604, 5207472, 7811208, 15622416.
If you add them up, you will get the total of 47,521,760.