20745172

素因数分解:

$2^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{32213}}^1$

素因数の和:32247

約数の個数: 24

約数和(自身を含む): 43295616

約数和(自身を除く): 22550444

約数列:

[1, 2, 4, 7, 14, 23, 28, 46, 92, 161, 322, 644, 32213, 64426, 128852, 225491, 450982, 740899, 901964, 1481798, 2963596, 5186293, 10372586, 20745172]

約数ペア:

[(1, 20745172), (2, 10372586), (4, 5186293), (7, 2963596), (14, 1481798), (23, 901964), (28, 740899), (46, 450982), (92, 225491), (161, 128852), (322, 64426), (644, 32213)]