16660539

素因数分解:

$3^3\times 7^4\times {\mathrm{257}}^1$

素因数の和:294

約数の個数: 40

約数和(自身を含む): 28906320

約数和(自身を除く): 12245781

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 147, 189, 257, 343, 441, 771, 1029, 1323, 1799, 2313, 2401, 3087, 5397, 6939, 7203, 9261, 12593, 16191, 21609, 37779, 48573, 64827, 88151, 113337, 264453, 340011, 617057, 793359, 1851171, 2380077, 5553513, 16660539]

約数ペア:

[(1, 16660539), (3, 5553513), (7, 2380077), (9, 1851171), (21, 793359), (27, 617057), (49, 340011), (63, 264453), (147, 113337), (189, 88151), (257, 64827), (343, 48573), (441, 37779), (771, 21609), (1029, 16191), (1323, 12593), (1799, 9261), (2313, 7203), (2401, 6939), (3087, 5397)]