13904721

素因数分解:

$3^2\times {\mathrm{991}}^1\times {\mathrm{1559}}^1$

素因数の和:2556

約数の個数: 12

約数和(自身を含む): 20117760

約数和(自身を除く): 6213039

約数列:

[1, 3, 9, 991, 1559, 2973, 4677, 8919, 14031, 1544969, 4634907, 13904721]

約数ペア:

[(1, 13904721), (3, 4634907), (9, 1544969), (991, 14031), (1559, 8919), (2973, 4677)]