172791297

素因数分解:

$3^2\times 7^2\times {\mathrm{391817}}^1$

素因数の和:391837

約数の個数: 18

約数和(自身を含む): 290337138

約数和(自身を除く): 117545841

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 441, 391817, 1175451, 2742719, 3526353, 8228157, 19199033, 24684471, 57597099, 172791297]

約数ペア:

[(1, 172791297), (3, 57597099), (7, 24684471), (9, 19199033), (21, 8228157), (49, 3526353), (63, 2742719), (147, 1175451), (441, 391817)]