21497974828

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{488590337}}^1$

素因数の和:488590352

約数の個数: 12

約数和(自身を含む): 41041588392

約数和(自身を除く): 19543613564

約数列:

[1, 2, 4, 11, 22, 44, 488590337, 977180674, 1954361348, 5374493707, 10748987414, 21497974828]

約数ペア:

[(1, 21497974828), (2, 10748987414), (4, 5374493707), (11, 1954361348), (22, 977180674), (44, 488590337)]