221845393

素因数分解:

$7^2\times {\mathrm{11}}^2\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{71}}^1$

素因数の和:155

約数の個数: 72

約数和(自身を含む): 314399232

約数和(自身を除く): 92553839

約数列:

[1, 7, 11, 17, 31, 49, 71, 77, 119, 121, 187, 217, 341, 497, 527, 539, 781, 833, 847, 1207, 1309, 1519, 2057, 2201, 2387, 3479, 3689, 3751, 5467, 5797, 5929, 8449, 8591, 9163, 13277, 14399, 15407, 16709, 24211, 25823, 26257, 37417, 38269, 40579, 59143, 60137, 63767, 92939, 100793, 107849, 146047, 169477, 183799, 261919, 266321, 284053, 411587, 420959, 446369, 650573, 1022329, 1186339, 1833433, 1864247, 2881109, 3124583, 4527457, 7156303, 13049729, 20167763, 31692199, 221845393]

約数ペア:

[(1, 221845393), (7, 31692199), (11, 20167763), (17, 13049729), (31, 7156303), (49, 4527457), (71, 3124583), (77, 2881109), (119, 1864247), (121, 1833433), (187, 1186339), (217, 1022329), (341, 650573), (497, 446369), (527, 420959), (539, 411587), (781, 284053), (833, 266321), (847, 261919), (1207, 183799), (1309, 169477), (1519, 146047), (2057, 107849), (2201, 100793), (2387, 92939), (3479, 63767), (3689, 60137), (3751, 59143), (5467, 40579), (5797, 38269), (5929, 37417), (8449, 26257), (8591, 25823), (9163, 24211), (13277, 16709), (14399, 15407)]