21636478

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{33493}}^1$

素因数の和:33531

約数の個数: 16

約数和(自身を含む): 36173520

約数和(自身を除く): 14537042

約数列:

[1, 2, 17, 19, 34, 38, 323, 646, 33493, 66986, 569381, 636367, 1138762, 1272734, 10818239, 21636478]

約数ペア:

[(1, 21636478), (2, 10818239), (17, 1272734), (19, 1138762), (34, 636367), (38, 569381), (323, 66986), (646, 33493)]