21065086

素因数分解:

$2^1\times 7^1\times {\mathrm{683}}^1\times {\mathrm{2203}}^1$

素因数の和:2895

約数の個数: 16

約数和(自身を含む): 36180864

約数和(自身を除く): 15115778

約数列:

[1, 2, 7, 14, 683, 1366, 2203, 4406, 4781, 9562, 15421, 30842, 1504649, 3009298, 10532543, 21065086]

約数ペア:

[(1, 21065086), (2, 10532543), (7, 3009298), (14, 1504649), (683, 30842), (1366, 15421), (2203, 9562), (4406, 4781)]