20137328

素因数分解:

$2^4\times {\mathrm{23}}^1\times {\mathrm{54721}}^1$

素因数の和:54752

約数の個数: 20

約数和(自身を含む): 40713168

約数和(自身を除く): 20575840

約数列:

[1, 2, 4, 8, 16, 23, 46, 92, 184, 368, 54721, 109442, 218884, 437768, 875536, 1258583, 2517166, 5034332, 10068664, 20137328]

約数ペア:

[(1, 20137328), (2, 10068664), (4, 5034332), (8, 2517166), (16, 1258583), (23, 875536), (46, 437768), (92, 218884), (184, 109442), (368, 54721)]