19977291

素因数分解:

$3^2\times {\mathrm{41}}^1\times {\mathrm{54139}}^1$

素因数の和:54186

約数の個数: 12

約数和(自身を含む): 29560440

約数和(自身を除く): 9583149

約数列:

[1, 3, 9, 41, 123, 369, 54139, 162417, 487251, 2219699, 6659097, 19977291]

約数ペア:

[(1, 19977291), (3, 6659097), (9, 2219699), (41, 487251), (123, 162417), (369, 54139)]