21255544

素因数分解:

$2^3\times {\mathrm{53}}^1\times {\mathrm{50131}}^1$

素因数の和:50190

約数の個数: 16

約数和(自身を含む): 40606920

約数和(自身を除く): 19351376

約数列:

[1, 2, 4, 8, 53, 106, 212, 424, 50131, 100262, 200524, 401048, 2656943, 5313886, 10627772, 21255544]

約数ペア:

[(1, 21255544), (2, 10627772), (4, 5313886), (8, 2656943), (53, 401048), (106, 200524), (212, 100262), (424, 50131)]