821691027

素因数分解:

$3^3\times {\mathrm{457}}^1\times {\mathrm{66593}}^1$

素因数の和:67059

約数の個数: 16

約数和(自身を含む): 1220002080

約数和(自身を除く): 398311053

約数列:

[1, 3, 9, 27, 457, 1371, 4113, 12339, 66593, 199779, 599337, 1798011, 30433001, 91299003, 273897009, 821691027]

約数ペア:

[(1, 821691027), (3, 273897009), (9, 91299003), (27, 30433001), (457, 1798011), (1371, 599337), (4113, 199779), (12339, 66593)]