20527591

素因数分解:

$7^1\times {\mathrm{71}}^1\times {\mathrm{103}}^1\times {\mathrm{401}}^1$

素因数の和:582

約数の個数: 16

約数和(自身を含む): 24081408

約数和(自身を除く): 3553817

約数列:

[1, 7, 71, 103, 401, 497, 721, 2807, 7313, 28471, 41303, 51191, 199297, 289121, 2932513, 20527591]

約数ペア:

[(1, 20527591), (7, 2932513), (71, 289121), (103, 199297), (401, 51191), (497, 41303), (721, 28471), (2807, 7313)]