129121209

素因数分解:

$3^6\times 7^1\times {\mathrm{25303}}^1$

素因数の和:25328

約数の個数: 28

約数和(自身を含む): 221258176

約数和(自身を除く): 92136967

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 243, 567, 729, 1701, 5103, 25303, 75909, 177121, 227727, 531363, 683181, 1594089, 2049543, 4782267, 6148629, 14346801, 18445887, 43040403, 129121209]

約数ペア:

[(1, 129121209), (3, 43040403), (7, 18445887), (9, 14346801), (21, 6148629), (27, 4782267), (63, 2049543), (81, 1594089), (189, 683181), (243, 531363), (567, 227727), (729, 177121), (1701, 75909), (5103, 25303)]