21009078

素因数分解:

$2^1\times 3^3\times {\mathrm{389057}}^1$

素因数の和:389068

約数の個数: 16

約数和(自身を含む): 46686960

約数和(自身を除く): 25677882

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 389057, 778114, 1167171, 2334342, 3501513, 7003026, 10504539, 21009078]

約数ペア:

[(1, 21009078), (2, 10504539), (3, 7003026), (6, 3501513), (9, 2334342), (18, 1167171), (27, 778114), (54, 389057)]