20553988

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{56467}}^1$

素因数の和:56491

約数の個数: 24

約数和(自身を含む): 44270912

約数和(自身を除く): 23716924

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 52, 91, 182, 364, 56467, 112934, 225868, 395269, 734071, 790538, 1468142, 1581076, 2936284, 5138497, 10276994, 20553988]

約数ペア:

[(1, 20553988), (2, 10276994), (4, 5138497), (7, 2936284), (13, 1581076), (14, 1468142), (26, 790538), (28, 734071), (52, 395269), (91, 225868), (182, 112934), (364, 56467)]