21000716

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{193}}^1\times {\mathrm{2473}}^1$

素因数の和:2681

約数の個数: 24

約数和(自身を含む): 40316304

約数和(自身を除く): 19315588

約数列:

[1, 2, 4, 11, 22, 44, 193, 386, 772, 2123, 2473, 4246, 4946, 8492, 9892, 27203, 54406, 108812, 477289, 954578, 1909156, 5250179, 10500358, 21000716]

約数ペア:

[(1, 21000716), (2, 10500358), (4, 5250179), (11, 1909156), (22, 954578), (44, 477289), (193, 108812), (386, 54406), (772, 27203), (2123, 9892), (2473, 8492), (4246, 4946)]