19710464

素因数分解:

$2^9\times {\mathrm{137}}^1\times {\mathrm{281}}^1$

素因数の和:436

約数の個数: 40

約数和(自身を含む): 39811068

約数和(自身を除く): 20100604

約数列:

[1, 2, 4, 8, 16, 32, 64, 128, 137, 256, 274, 281, 512, 548, 562, 1096, 1124, 2192, 2248, 4384, 4496, 8768, 8992, 17536, 17984, 35072, 35968, 38497, 70144, 71936, 76994, 143872, 153988, 307976, 615952, 1231904, 2463808, 4927616, 9855232, 19710464]

約数ペア:

[(1, 19710464), (2, 9855232), (4, 4927616), (8, 2463808), (16, 1231904), (32, 615952), (64, 307976), (128, 153988), (137, 143872), (256, 76994), (274, 71936), (281, 70144), (512, 38497), (548, 35968), (562, 35072), (1096, 17984), (1124, 17536), (2192, 8992), (2248, 8768), (4384, 4496)]