Answer:
1, 2, 4, 7, 8, 14, 16, 28, 32, 49, 56, 64, 98, 112, 128, 196, 224, 343, 392, 448, 686, 784, 896, 1372, 1568, 2744, 3136, 5488, 6272, 10976, 21952, 43904
Positive Integer factors of 43904 = 2, 4, 8, 16, 32, 64, 128, 7, 896, 6272, 43904 divided by 2, 2, 2, 2, 2, 2, 2, 7, 7, 7, gives no remainder.
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