28769091

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{19937}}^1$

素因数の和:19990

約数の個数: 16

約数和(自身を含む): 42428064

約数和(自身を除く): 13658973

約数列:

[1, 3, 13, 37, 39, 111, 481, 1443, 19937, 59811, 259181, 737669, 777543, 2213007, 9589697, 28769091]

約数ペア:

[(1, 28769091), (3, 9589697), (13, 2213007), (37, 777543), (39, 737669), (111, 259181), (481, 59811), (1443, 19937)]