25020009

素因数分解:

$3^6\times 7^1\times {\mathrm{4903}}^1$

素因数の和:4928

約数の個数: 28

約数和(自身を含む): 42880576

約数和(自身を除く): 17860567

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 243, 567, 729, 1701, 4903, 5103, 14709, 34321, 44127, 102963, 132381, 308889, 397143, 926667, 1191429, 2780001, 3574287, 8340003, 25020009]

約数ペア:

[(1, 25020009), (3, 8340003), (7, 3574287), (9, 2780001), (21, 1191429), (27, 926667), (63, 397143), (81, 308889), (189, 132381), (243, 102963), (567, 44127), (729, 34321), (1701, 14709), (4903, 5103)]