20995255

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{139}}^1\times {\mathrm{1777}}^1$

素因数の和:1938

約数の個数: 16

約数和(自身を含む): 26883360

約数和(自身を除く): 5888105

約数列:

[1, 5, 17, 85, 139, 695, 1777, 2363, 8885, 11815, 30209, 151045, 247003, 1235015, 4199051, 20995255]

約数ペア:

[(1, 20995255), (5, 4199051), (17, 1235015), (85, 247003), (139, 151045), (695, 30209), (1777, 11815), (2363, 8885)]