21380942

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{53}}^1\times {\mathrm{1667}}^1$

素因数の和:1744

約数の個数: 24

約数和(自身を含む): 35938728

約数和(自身を除く): 14557786

約数列:

[1, 2, 11, 22, 53, 106, 121, 242, 583, 1166, 1667, 3334, 6413, 12826, 18337, 36674, 88351, 176702, 201707, 403414, 971861, 1943722, 10690471, 21380942]

約数ペア:

[(1, 21380942), (2, 10690471), (11, 1943722), (22, 971861), (53, 403414), (106, 201707), (121, 176702), (242, 88351), (583, 36674), (1166, 18337), (1667, 12826), (3334, 6413)]