28517721

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{83}}^1\times {\mathrm{6737}}^1$

素因数の和:6840

約数の個数: 16

約数和(自身を含む): 40751424

約数和(自身を除く): 12233703

約数列:

[1, 3, 17, 51, 83, 249, 1411, 4233, 6737, 20211, 114529, 343587, 559171, 1677513, 9505907, 28517721]

約数ペア:

[(1, 28517721), (3, 9505907), (17, 1677513), (51, 559171), (83, 343587), (249, 114529), (1411, 20211), (4233, 6737)]