20907005

素因数分解:

$5^1\times 7^1\times {\mathrm{563}}^1\times {\mathrm{1061}}^1$

素因数の和:1636

約数の個数: 16

約数和(自身を含む): 28750464

約数和(自身を除く): 7843459

約数列:

[1, 5, 7, 35, 563, 1061, 2815, 3941, 5305, 7427, 19705, 37135, 597343, 2986715, 4181401, 20907005]

約数ペア:

[(1, 20907005), (5, 4181401), (7, 2986715), (35, 597343), (563, 37135), (1061, 19705), (2815, 7427), (3941, 5305)]