21079646

素因数分解:

$2^1\times 7^1\times {\mathrm{691}}^1\times {\mathrm{2179}}^1$

素因数の和:2879

約数の個数: 16

約数和(自身を含む): 36205440

約数和(自身を除く): 15125794

約数列:

[1, 2, 7, 14, 691, 1382, 2179, 4358, 4837, 9674, 15253, 30506, 1505689, 3011378, 10539823, 21079646]

約数ペア:

[(1, 21079646), (2, 10539823), (7, 3011378), (14, 1505689), (691, 30506), (1382, 15253), (2179, 9674), (4358, 4837)]