20770855

素因数分解:

$5^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{4987}}^1$

素因数の和:5023

約数の個数: 24

約数和(自身を含む): 30706128

約数和(自身を除く): 9935273

約数列:

[1, 5, 7, 17, 35, 49, 85, 119, 245, 595, 833, 4165, 4987, 24935, 34909, 84779, 174545, 244363, 423895, 593453, 1221815, 2967265, 4154171, 20770855]

約数ペア:

[(1, 20770855), (5, 4154171), (7, 2967265), (17, 1221815), (35, 593453), (49, 423895), (85, 244363), (119, 174545), (245, 84779), (595, 34909), (833, 24935), (4165, 4987)]