217552959

素因数分解:

$3^4\times {\mathrm{13}}^1\times {\mathrm{206603}}^1$

素因数の和:206628

約数の個数: 20

約数和(自身を含む): 349987176

約数和(自身を除く): 132434217

約数列:

[1, 3, 9, 13, 27, 39, 81, 117, 351, 1053, 206603, 619809, 1859427, 2685839, 5578281, 8057517, 16734843, 24172551, 72517653, 217552959]

約数ペア:

[(1, 217552959), (3, 72517653), (9, 24172551), (13, 16734843), (27, 8057517), (39, 5578281), (81, 2685839), (117, 1859427), (351, 619809), (1053, 206603)]