20855906

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{181}}^1\times {\mathrm{3389}}^1$

素因数の和:3589

約数の個数: 16

約数和(自身を含む): 33316920

約数和(自身を除く): 12461014

約数列:

[1, 2, 17, 34, 181, 362, 3077, 3389, 6154, 6778, 57613, 115226, 613409, 1226818, 10427953, 20855906]

約数ペア:

[(1, 20855906), (2, 10427953), (17, 1226818), (34, 613409), (181, 115226), (362, 57613), (3077, 6778), (3389, 6154)]