18020583

素因数分解:

$3^3\times 7^2\times {\mathrm{53}}^1\times {\mathrm{257}}^1$

素因数の和:333

約数の個数: 48

約数和(自身を含む): 31764960

約数和(自身を除く): 13744377

約数列:

[1, 3, 7, 9, 21, 27, 49, 53, 63, 147, 159, 189, 257, 371, 441, 477, 771, 1113, 1323, 1431, 1799, 2313, 2597, 3339, 5397, 6939, 7791, 10017, 12593, 13621, 16191, 23373, 37779, 40863, 48573, 70119, 95347, 113337, 122589, 286041, 340011, 367767, 667429, 858123, 2002287, 2574369, 6006861, 18020583]

約数ペア:

[(1, 18020583), (3, 6006861), (7, 2574369), (9, 2002287), (21, 858123), (27, 667429), (49, 367767), (53, 340011), (63, 286041), (147, 122589), (159, 113337), (189, 95347), (257, 70119), (371, 48573), (441, 40863), (477, 37779), (771, 23373), (1113, 16191), (1323, 13621), (1431, 12593), (1799, 10017), (2313, 7791), (2597, 6939), (3339, 5397)]