1678238821

素因数分解:

$7^1\times {\mathrm{19}}^2\times {\mathrm{664123}}^1$

素因数の和:664168

約数の個数: 12

約数和(自身を含む): 2024249952

約数和(自身を除く): 346011131

約数列:

[1, 7, 19, 133, 361, 2527, 664123, 4648861, 12618337, 88328359, 239748403, 1678238821]

約数ペア:

[(1, 1678238821), (7, 239748403), (19, 88328359), (133, 12618337), (361, 4648861), (2527, 664123)]