20983732

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{193}}^1\times {\mathrm{353}}^1$

素因数の和:568

約数の個数: 48

約数和(自身を含む): 46150272

約数和(自身を除く): 25166540

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 77, 154, 193, 308, 353, 386, 706, 772, 1351, 1412, 2123, 2471, 2702, 3883, 4246, 4942, 5404, 7766, 8492, 9884, 14861, 15532, 27181, 29722, 54362, 59444, 68129, 108724, 136258, 272516, 476903, 749419, 953806, 1498838, 1907612, 2997676, 5245933, 10491866, 20983732]

約数ペア:

[(1, 20983732), (2, 10491866), (4, 5245933), (7, 2997676), (11, 1907612), (14, 1498838), (22, 953806), (28, 749419), (44, 476903), (77, 272516), (154, 136258), (193, 108724), (308, 68129), (353, 59444), (386, 54362), (706, 29722), (772, 27181), (1351, 15532), (1412, 14861), (2123, 9884), (2471, 8492), (2702, 7766), (3883, 5404), (4246, 4942)]