20493356

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{12713}}^1$

素因数の和:12761

約数の個数: 24

約数和(自身を含む): 39871104

約数和(自身を除く): 19377748

約数列:

[1, 2, 4, 13, 26, 31, 52, 62, 124, 403, 806, 1612, 12713, 25426, 50852, 165269, 330538, 394103, 661076, 788206, 1576412, 5123339, 10246678, 20493356]

約数ペア:

[(1, 20493356), (2, 10246678), (4, 5123339), (13, 1576412), (26, 788206), (31, 661076), (52, 394103), (62, 330538), (124, 165269), (403, 50852), (806, 25426), (1612, 12713)]