20658286

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{19979}}^1$

素因数の和:20039

約数の個数: 16

約数和(自身を含む): 34525440

約数和(自身を除く): 13867154

約数列:

[1, 2, 11, 22, 47, 94, 517, 1034, 19979, 39958, 219769, 439538, 939013, 1878026, 10329143, 20658286]

約数ペア:

[(1, 20658286), (2, 10329143), (11, 1878026), (22, 939013), (47, 439538), (94, 219769), (517, 39958), (1034, 19979)]