20691489

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{75793}}^1$

素因数の和:75816

約数の個数: 16

約数和(自身を含む): 33955712

約数和(自身を除く): 13264223

約数列:

[1, 3, 7, 13, 21, 39, 91, 273, 75793, 227379, 530551, 985309, 1591653, 2955927, 6897163, 20691489]

約数ペア:

[(1, 20691489), (3, 6897163), (7, 2955927), (13, 1591653), (21, 985309), (39, 530551), (91, 227379), (273, 75793)]