20235865

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{18313}}^1$

素因数の和:18348

約数の個数: 16

約数和(自身を含む): 27690768

約数和(自身を除く): 7454903

約数列:

[1, 5, 13, 17, 65, 85, 221, 1105, 18313, 91565, 238069, 311321, 1190345, 1556605, 4047173, 20235865]

約数ペア:

[(1, 20235865), (5, 4047173), (13, 1556605), (17, 1190345), (65, 311321), (85, 238069), (221, 91565), (1105, 18313)]