21174681

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{173}}^1\times {\mathrm{3709}}^1$

素因数の和:3896

約数の個数: 16

約数和(自身を含む): 30985920

約数和(自身を除く): 9811239

約数列:

[1, 3, 11, 33, 173, 519, 1903, 3709, 5709, 11127, 40799, 122397, 641657, 1924971, 7058227, 21174681]

約数ペア:

[(1, 21174681), (3, 7058227), (11, 1924971), (33, 641657), (173, 122397), (519, 40799), (1903, 11127), (3709, 5709)]