20187351

素因数分解:

$3^2\times {\mathrm{557}}^1\times {\mathrm{4027}}^1$

素因数の和:4590

約数の個数: 12

約数和(自身を含む): 29219112

約数和(自身を除く): 9031761

約数列:

[1, 3, 9, 557, 1671, 4027, 5013, 12081, 36243, 2243039, 6729117, 20187351]

約数ペア:

[(1, 20187351), (3, 6729117), (9, 2243039), (557, 36243), (1671, 12081), (4027, 5013)]