878238081

素因数分解:

$3^2\times 7^1\times {\mathrm{41}}^1\times {\mathrm{340007}}^1$

素因数の和:340061

約数の個数: 24

約数和(自身を含む): 1485154944

約数和(自身を除く): 606916863

約数列:

[1, 3, 7, 9, 21, 41, 63, 123, 287, 369, 861, 2583, 340007, 1020021, 2380049, 3060063, 7140147, 13940287, 21420441, 41820861, 97582009, 125462583, 292746027, 878238081]

約数ペア:

[(1, 878238081), (3, 292746027), (7, 125462583), (9, 97582009), (21, 41820861), (41, 21420441), (63, 13940287), (123, 7140147), (287, 3060063), (369, 2380049), (861, 1020021), (2583, 340007)]