3890649

素因数分解:

$3^1\times 7^3\times {\mathrm{19}}^1\times {\mathrm{199}}^1$

素因数の和:242

約数の個数: 32

約数和(自身を含む): 6400000

約数和(自身を除く): 2509351

約数列:

[1, 3, 7, 19, 21, 49, 57, 133, 147, 199, 343, 399, 597, 931, 1029, 1393, 2793, 3781, 4179, 6517, 9751, 11343, 19551, 26467, 29253, 68257, 79401, 185269, 204771, 555807, 1296883, 3890649]

約数ペア:

[(1, 3890649), (3, 1296883), (7, 555807), (19, 204771), (21, 185269), (49, 79401), (57, 68257), (133, 29253), (147, 26467), (199, 19551), (343, 11343), (399, 9751), (597, 6517), (931, 4179), (1029, 3781), (1393, 2793)]