20847695

素因数分解:

$5^1\times {\mathrm{11}}^2\times {\mathrm{17}}^1\times {\mathrm{2027}}^1$

素因数の和:2071

約数の個数: 24

約数和(自身を含む): 29130192

約数和(自身を除く): 8282497

約数列:

[1, 5, 11, 17, 55, 85, 121, 187, 605, 935, 2027, 2057, 10135, 10285, 22297, 34459, 111485, 172295, 245267, 379049, 1226335, 1895245, 4169539, 20847695]

約数ペア:

[(1, 20847695), (5, 4169539), (11, 1895245), (17, 1226335), (55, 379049), (85, 245267), (121, 172295), (187, 111485), (605, 34459), (935, 22297), (2027, 10285), (2057, 10135)]