664698717

素因数分解:

$3^4\times {\mathrm{19}}^1\times {\mathrm{431903}}^1$

素因数の和:431934

約数の個数: 20

約数和(自身を含む): 1045207680

約数和(自身を除く): 380508963

約数列:

[1, 3, 9, 19, 27, 57, 81, 171, 513, 1539, 431903, 1295709, 3887127, 8206157, 11661381, 24618471, 34984143, 73855413, 221566239, 664698717]

約数ペア:

[(1, 664698717), (3, 221566239), (9, 73855413), (19, 34984143), (27, 24618471), (57, 11661381), (81, 8206157), (171, 3887127), (513, 1295709), (1539, 431903)]