19640978

素因数分解:

$2^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{10093}}^1$

素因数の和:10241

約数の個数: 16

約数和(自身を含む): 33915840

約数和(自身を除く): 14274862

約数列:

[1, 2, 7, 14, 139, 278, 973, 1946, 10093, 20186, 70651, 141302, 1402927, 2805854, 9820489, 19640978]

約数ペア:

[(1, 19640978), (2, 9820489), (7, 2805854), (14, 1402927), (139, 141302), (278, 70651), (973, 20186), (1946, 10093)]