20790411

素因数分解:

$3^1\times {\mathrm{37}}^1\times {\mathrm{157}}^1\times {\mathrm{1193}}^1$

素因数の和:1390

約数の個数: 16

約数和(自身を含む): 28675104

約数和(自身を除く): 7884693

約数列:

[1, 3, 37, 111, 157, 471, 1193, 3579, 5809, 17427, 44141, 132423, 187301, 561903, 6930137, 20790411]

約数ペア:

[(1, 20790411), (3, 6930137), (37, 561903), (111, 187301), (157, 132423), (471, 44141), (1193, 17427), (3579, 5809)]