208655909

素因数分解:

$7^1\times {\mathrm{11}}^2\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{337}}^1$

素因数の和:426

約数の個数: 48

約数和(自身を含む): 284828544

約数和(自身を除く): 76172635

約数列:

[1, 7, 11, 17, 43, 77, 119, 121, 187, 301, 337, 473, 731, 847, 1309, 2057, 2359, 3311, 3707, 5117, 5203, 5729, 8041, 14399, 14491, 25949, 36421, 40103, 40777, 56287, 63019, 88451, 101437, 159401, 246347, 285439, 441133, 619157, 693209, 1115807, 1724429, 1753411, 2709817, 4852463, 12273877, 18968719, 29807987, 208655909]

約数ペア:

[(1, 208655909), (7, 29807987), (11, 18968719), (17, 12273877), (43, 4852463), (77, 2709817), (119, 1753411), (121, 1724429), (187, 1115807), (301, 693209), (337, 619157), (473, 441133), (731, 285439), (847, 246347), (1309, 159401), (2057, 101437), (2359, 88451), (3311, 63019), (3707, 56287), (5117, 40777), (5203, 40103), (5729, 36421), (8041, 25949), (14399, 14491)]