20163955

素因数分解:

$5^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{33889}}^1$

素因数の和:33918

約数の個数: 16

約数和(自身を含む): 29280960

約数和(自身を除く): 9117005

約数列:

[1, 5, 7, 17, 35, 85, 119, 595, 33889, 169445, 237223, 576113, 1186115, 2880565, 4032791, 20163955]

約数ペア:

[(1, 20163955), (5, 4032791), (7, 2880565), (17, 1186115), (35, 576113), (85, 237223), (119, 169445), (595, 33889)]