20665931

素因数分解:

${\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{8501}}^1$

素因数の和:8542

約数の個数: 16

約数和(自身を含む): 25710048

約数和(自身を除く): 5044117

約数列:

[1, 11, 13, 17, 143, 187, 221, 2431, 8501, 93511, 110513, 144517, 1215643, 1589687, 1878721, 20665931]

約数ペア:

[(1, 20665931), (11, 1878721), (13, 1589687), (17, 1215643), (143, 144517), (187, 110513), (221, 93511), (2431, 8501)]