20506508

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{313}}^1\times {\mathrm{1489}}^1$

素因数の和:1817

約数の個数: 24

約数和(自身を含む): 39300240

約数和(自身を除く): 18793732

約数列:

[1, 2, 4, 11, 22, 44, 313, 626, 1252, 1489, 2978, 3443, 5956, 6886, 13772, 16379, 32758, 65516, 466057, 932114, 1864228, 5126627, 10253254, 20506508]

約数ペア:

[(1, 20506508), (2, 10253254), (4, 5126627), (11, 1864228), (22, 932114), (44, 466057), (313, 65516), (626, 32758), (1252, 16379), (1489, 13772), (2978, 6886), (3443, 5956)]