28870929

素因数分解:

$3^2\times {\mathrm{41}}^1\times {\mathrm{78241}}^1$

素因数の和:78288

約数の個数: 12

約数和(自身を含む): 42720132

約数和(自身を除く): 13849203

約数列:

[1, 3, 9, 41, 123, 369, 78241, 234723, 704169, 3207881, 9623643, 28870929]

約数ペア:

[(1, 28870929), (3, 9623643), (9, 3207881), (41, 704169), (123, 234723), (369, 78241)]