19872027

素因数分解:

$3^3\times 7^1\times {\mathrm{105143}}^1$

素因数の和:105159

約数の個数: 16

約数和(自身を含む): 33646080

約数和(自身を除く): 13774053

約数列:

[1, 3, 7, 9, 21, 27, 63, 189, 105143, 315429, 736001, 946287, 2208003, 2838861, 6624009, 19872027]

約数ペア:

[(1, 19872027), (3, 6624009), (7, 2838861), (9, 2208003), (21, 946287), (27, 736001), (63, 315429), (189, 105143)]