28797489

素因数分解:

$3^2\times 7^1\times {\mathrm{199}}^1\times {\mathrm{2297}}^1$

素因数の和:2509

約数の個数: 24

約数和(自身を含む): 47798400

約数和(自身を除く): 19000911

約数列:

[1, 3, 7, 9, 21, 63, 199, 597, 1393, 1791, 2297, 4179, 6891, 12537, 16079, 20673, 48237, 144711, 457103, 1371309, 3199721, 4113927, 9599163, 28797489]

約数ペア:

[(1, 28797489), (3, 9599163), (7, 4113927), (9, 3199721), (21, 1371309), (63, 457103), (199, 144711), (597, 48237), (1393, 20673), (1791, 16079), (2297, 12537), (4179, 6891)]