20853778

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{41213}}^1$

素因数の和:41249

約数の個数: 16

約数和(自身を含む): 35608896

約数和(自身を除く): 14755118

約数列:

[1, 2, 11, 22, 23, 46, 253, 506, 41213, 82426, 453343, 906686, 947899, 1895798, 10426889, 20853778]

約数ペア:

[(1, 20853778), (2, 10426889), (11, 1895798), (22, 947899), (23, 906686), (46, 453343), (253, 82426), (506, 41213)]