28668969

素因数分解:

$3^2\times 7^3\times {\mathrm{37}}^1\times {\mathrm{251}}^1$

素因数の和:315

約数の個数: 48

約数和(自身を含む): 49795200

約数和(自身を除く): 21126231

約数列:

[1, 3, 7, 9, 21, 37, 49, 63, 111, 147, 251, 259, 333, 343, 441, 753, 777, 1029, 1757, 1813, 2259, 2331, 3087, 5271, 5439, 9287, 12299, 12691, 15813, 16317, 27861, 36897, 38073, 65009, 83583, 86093, 110691, 114219, 195027, 258279, 455063, 585081, 774837, 1365189, 3185441, 4095567, 9556323, 28668969]

約数ペア:

[(1, 28668969), (3, 9556323), (7, 4095567), (9, 3185441), (21, 1365189), (37, 774837), (49, 585081), (63, 455063), (111, 258279), (147, 195027), (251, 114219), (259, 110691), (333, 86093), (343, 83583), (441, 65009), (753, 38073), (777, 36897), (1029, 27861), (1757, 16317), (1813, 15813), (2259, 12691), (2331, 12299), (3087, 9287), (5271, 5439)]