20908195

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{4937}}^1$

素因数の和:4971

約数の個数: 24

約数和(自身を含む): 31524192

約数和(自身を除く): 10615997

約数列:

[1, 5, 7, 11, 35, 55, 77, 121, 385, 605, 847, 4235, 4937, 24685, 34559, 54307, 172795, 271535, 380149, 597377, 1900745, 2986885, 4181639, 20908195]

約数ペア:

[(1, 20908195), (5, 4181639), (7, 2986885), (11, 1900745), (35, 597377), (55, 380149), (77, 271535), (121, 172795), (385, 54307), (605, 34559), (847, 24685), (4235, 4937)]