51397521

素因数分解:

$3^1\times 7^3\times {\mathrm{199}}^1\times {\mathrm{251}}^1$

素因数の和:474

約数の個数: 32

約数和(自身を含む): 80640000

約数和(自身を除く): 29242479

約数列:

[1, 3, 7, 21, 49, 147, 199, 251, 343, 597, 753, 1029, 1393, 1757, 4179, 5271, 9751, 12299, 29253, 36897, 49949, 68257, 86093, 149847, 204771, 258279, 349643, 1048929, 2447501, 7342503, 17132507, 51397521]

約数ペア:

[(1, 51397521), (3, 17132507), (7, 7342503), (21, 2447501), (49, 1048929), (147, 349643), (199, 258279), (251, 204771), (343, 149847), (597, 86093), (753, 68257), (1029, 49949), (1393, 36897), (1757, 29253), (4179, 12299), (5271, 9751)]