20912012012

素因数分解:

$2^2\times {\mathrm{1951}}^1\times {\mathrm{2679653}}^1$

素因数の和:2681608

約数の個数: 12

約数和(自身を含む): 36614792256

約数和(自身を除く): 15702780244

約数列:

[1, 2, 4, 1951, 3902, 7804, 2679653, 5359306, 10718612, 5228003003, 10456006006, 20912012012]

約数ペア:

[(1, 20912012012), (2, 10456006006), (4, 5228003003), (1951, 10718612), (3902, 5359306), (7804, 2679653)]