20019755

素因数分解:

$5^1\times 7^1\times {\mathrm{433}}^1\times {\mathrm{1321}}^1$

素因数の和:1766

約数の個数: 16

約数和(自身を含む): 27539904

約数和(自身を除く): 7520149

約数列:

[1, 5, 7, 35, 433, 1321, 2165, 3031, 6605, 9247, 15155, 46235, 571993, 2859965, 4003951, 20019755]

約数ペア:

[(1, 20019755), (5, 4003951), (7, 2859965), (35, 571993), (433, 46235), (1321, 15155), (2165, 9247), (3031, 6605)]