20830876

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{193}}^1\times {\mathrm{223}}^1$

素因数の和:442

約数の個数: 36

約数和(自身を含む): 40457536

約数和(自身を除く): 19626660

約数列:

[1, 2, 4, 11, 22, 44, 121, 193, 223, 242, 386, 446, 484, 772, 892, 2123, 2453, 4246, 4906, 8492, 9812, 23353, 26983, 43039, 46706, 53966, 86078, 93412, 107932, 172156, 473429, 946858, 1893716, 5207719, 10415438, 20830876]

約数ペア:

[(1, 20830876), (2, 10415438), (4, 5207719), (11, 1893716), (22, 946858), (44, 473429), (121, 172156), (193, 107932), (223, 93412), (242, 86078), (386, 53966), (446, 46706), (484, 43039), (772, 26983), (892, 23353), (2123, 9812), (2453, 8492), (4246, 4906)]