201219309

素因数分解:

$3^9\times {\mathrm{10223}}^1$

素因数の和:10250

約数の個数: 20

約数和(自身を含む): 301853376

約数和(自身を除く): 100634067

約数列:

[1, 3, 9, 27, 81, 243, 729, 2187, 6561, 10223, 19683, 30669, 92007, 276021, 828063, 2484189, 7452567, 22357701, 67073103, 201219309]

約数ペア:

[(1, 201219309), (3, 67073103), (9, 22357701), (27, 7452567), (81, 2484189), (243, 828063), (729, 276021), (2187, 92007), (6561, 30669), (10223, 19683)]