20766878

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{139}}^1\times {\mathrm{6791}}^1$

素因数の和:6943

約数の個数: 16

約数和(自身を含む): 34231680

約数和(自身を除く): 13464802

約数列:

[1, 2, 11, 22, 139, 278, 1529, 3058, 6791, 13582, 74701, 149402, 943949, 1887898, 10383439, 20766878]

約数ペア:

[(1, 20766878), (2, 10383439), (11, 1887898), (22, 943949), (139, 149402), (278, 74701), (1529, 13582), (3058, 6791)]