21280056

素因数分解:

$2^3\times 3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{7451}}^1$

素因数の和:7484

約数の個数: 64

約数和(自身を含む): 64385280

約数和(自身を除く): 43105224

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 17, 21, 24, 28, 34, 42, 51, 56, 68, 84, 102, 119, 136, 168, 204, 238, 357, 408, 476, 714, 952, 1428, 2856, 7451, 14902, 22353, 29804, 44706, 52157, 59608, 89412, 104314, 126667, 156471, 178824, 208628, 253334, 312942, 380001, 417256, 506668, 625884, 760002, 886669, 1013336, 1251768, 1520004, 1773338, 2660007, 3040008, 3546676, 5320014, 7093352, 10640028, 21280056]

約数ペア:

[(1, 21280056), (2, 10640028), (3, 7093352), (4, 5320014), (6, 3546676), (7, 3040008), (8, 2660007), (12, 1773338), (14, 1520004), (17, 1251768), (21, 1013336), (24, 886669), (28, 760002), (34, 625884), (42, 506668), (51, 417256), (56, 380001), (68, 312942), (84, 253334), (102, 208628), (119, 178824), (136, 156471), (168, 126667), (204, 104314), (238, 89412), (357, 59608), (408, 52157), (476, 44706), (714, 29804), (952, 22353), (1428, 14902), (2856, 7451)]