20882792

素因数分解:

$2^3\times 7^1\times {\mathrm{257}}^1\times {\mathrm{1451}}^1$

素因数の和:1721

約数の個数: 32

約数和(自身を含む): 44953920

約数和(自身を除く): 24071128

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 257, 514, 1028, 1451, 1799, 2056, 2902, 3598, 5804, 7196, 10157, 11608, 14392, 20314, 40628, 81256, 372907, 745814, 1491628, 2610349, 2983256, 5220698, 10441396, 20882792]

約数ペア:

[(1, 20882792), (2, 10441396), (4, 5220698), (7, 2983256), (8, 2610349), (14, 1491628), (28, 745814), (56, 372907), (257, 81256), (514, 40628), (1028, 20314), (1451, 14392), (1799, 11608), (2056, 10157), (2902, 7196), (3598, 5804)]