19205181

素因数分解:

$3^4\times {\mathrm{19}}^1\times {\mathrm{12479}}^1$

素因数の和:12510

約数の個数: 20

約数和(自身を含む): 30201600

約数和(自身を除く): 10996419

約数列:

[1, 3, 9, 19, 27, 57, 81, 171, 513, 1539, 12479, 37437, 112311, 237101, 336933, 711303, 1010799, 2133909, 6401727, 19205181]

約数ペア:

[(1, 19205181), (3, 6401727), (9, 2133909), (19, 1010799), (27, 711303), (57, 336933), (81, 237101), (171, 112311), (513, 37437), (1539, 12479)]