21491074

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{131}}^1\times {\mathrm{7457}}^1$

素因数の和:7601

約数の個数: 16

約数和(自身を含む): 35440416

約数和(自身を除く): 13949342

約数列:

[1, 2, 11, 22, 131, 262, 1441, 2882, 7457, 14914, 82027, 164054, 976867, 1953734, 10745537, 21491074]

約数ペア:

[(1, 21491074), (2, 10745537), (11, 1953734), (22, 976867), (131, 164054), (262, 82027), (1441, 14914), (2882, 7457)]