20857045

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{22307}}^1$

素因数の和:22340

約数の個数: 16

約数和(自身を含む): 28911168

約数和(自身を除く): 8054123

約数列:

[1, 5, 11, 17, 55, 85, 187, 935, 22307, 111535, 245377, 379219, 1226885, 1896095, 4171409, 20857045]

約数ペア:

[(1, 20857045), (5, 4171409), (11, 1896095), (17, 1226885), (55, 379219), (85, 245377), (187, 111535), (935, 22307)]