20649076

素因数分解:

$2^2\times 7^1\times {\mathrm{41}}^1\times {\mathrm{17987}}^1$

素因数の和:18039

約数の個数: 24

約数和(自身を含む): 42307776

約数和(自身を除く): 21658700

約数列:

[1, 2, 4, 7, 14, 28, 41, 82, 164, 287, 574, 1148, 17987, 35974, 71948, 125909, 251818, 503636, 737467, 1474934, 2949868, 5162269, 10324538, 20649076]

約数ペア:

[(1, 20649076), (2, 10324538), (4, 5162269), (7, 2949868), (14, 1474934), (28, 737467), (41, 503636), (82, 251818), (164, 125909), (287, 71948), (574, 35974), (1148, 17987)]