20567764

素因数分解:

$2^2\times 7^1\times {\mathrm{47}}^1\times {\mathrm{15629}}^1$

素因数の和:15687

約数の個数: 24

約数和(自身を含む): 42013440

約数和(自身を除く): 21445676

約数列:

[1, 2, 4, 7, 14, 28, 47, 94, 188, 329, 658, 1316, 15629, 31258, 62516, 109403, 218806, 437612, 734563, 1469126, 2938252, 5141941, 10283882, 20567764]

約数ペア:

[(1, 20567764), (2, 10283882), (4, 5141941), (7, 2938252), (14, 1469126), (28, 734563), (47, 437612), (94, 218806), (188, 109403), (329, 62516), (658, 31258), (1316, 15629)]