20653675

素因数分解:

$5^2\times 7^1\times {\mathrm{107}}^1\times {\mathrm{1103}}^1$

素因数の和:1227

約数の個数: 24

約数和(自身を含む): 29569536

約数和(自身を除く): 8915861

約数列:

[1, 5, 7, 25, 35, 107, 175, 535, 749, 1103, 2675, 3745, 5515, 7721, 18725, 27575, 38605, 118021, 193025, 590105, 826147, 2950525, 4130735, 20653675]

約数ペア:

[(1, 20653675), (5, 4130735), (7, 2950525), (25, 826147), (35, 590105), (107, 193025), (175, 118021), (535, 38605), (749, 27575), (1103, 18725), (2675, 7721), (3745, 5515)]