20487742

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{73}}^1\times {\mathrm{12757}}^1$

素因数の和:12843

約数の個数: 16

約数和(自身を含む): 33987312

約数和(自身を除く): 13499570

約数列:

[1, 2, 11, 22, 73, 146, 803, 1606, 12757, 25514, 140327, 280654, 931261, 1862522, 10243871, 20487742]

約数ペア:

[(1, 20487742), (2, 10243871), (11, 1862522), (22, 931261), (73, 280654), (146, 140327), (803, 25514), (1606, 12757)]