21404636

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{103}}^1\times {\mathrm{4723}}^1$

素因数の和:4841

約数の個数: 24

約数和(自身を含む): 41268864

約数和(自身を除く): 19864228

約数列:

[1, 2, 4, 11, 22, 44, 103, 206, 412, 1133, 2266, 4532, 4723, 9446, 18892, 51953, 103906, 207812, 486469, 972938, 1945876, 5351159, 10702318, 21404636]

約数ペア:

[(1, 21404636), (2, 10702318), (4, 5351159), (11, 1945876), (22, 972938), (44, 486469), (103, 207812), (206, 103906), (412, 51953), (1133, 18892), (2266, 9446), (4532, 4723)]