21299487

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{37967}}^1$

素因数の和:37998

約数の個数: 16

約数和(自身を含む): 32804352

約数和(自身を除く): 11504865

約数列:

[1, 3, 11, 17, 33, 51, 187, 561, 37967, 113901, 417637, 645439, 1252911, 1936317, 7099829, 21299487]

約数ペア:

[(1, 21299487), (3, 7099829), (11, 1936317), (17, 1252911), (33, 645439), (51, 417637), (187, 113901), (561, 37967)]