67998321

素因数分解:

$3^2\times {\mathrm{19}}^2\times {\mathrm{20929}}^1$

素因数の和:20973

約数の個数: 18

約数和(自身を含む): 103666290

約数和(自身を除く): 35667969

約数列:

[1, 3, 9, 19, 57, 171, 361, 1083, 3249, 20929, 62787, 188361, 397651, 1192953, 3578859, 7555369, 22666107, 67998321]

約数ペア:

[(1, 67998321), (3, 22666107), (9, 7555369), (19, 3578859), (57, 1192953), (171, 397651), (361, 188361), (1083, 62787), (3249, 20929)]