221874471

素因数分解:

$3^4\times 7^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{971}}^1$

素因数の和:1034

約数の個数: 80

約数和(自身を含む): 421521408

約数和(自身を除く): 199646937

約数列:

[1, 3, 7, 9, 13, 21, 27, 31, 39, 63, 81, 91, 93, 117, 189, 217, 273, 279, 351, 403, 567, 651, 819, 837, 971, 1053, 1209, 1953, 2457, 2511, 2821, 2913, 3627, 5859, 6797, 7371, 8463, 8739, 10881, 12623, 17577, 20391, 25389, 26217, 30101, 32643, 37869, 61173, 76167, 78651, 88361, 90303, 113607, 183519, 210707, 228501, 265083, 270909, 340821, 391313, 550557, 632121, 795249, 812727, 1022463, 1173939, 1896363, 2385747, 2438181, 2739191, 3521817, 5689089, 7157241, 8217573, 10565451, 17067267, 24652719, 31696353, 73958157, 221874471]

約数ペア:

[(1, 221874471), (3, 73958157), (7, 31696353), (9, 24652719), (13, 17067267), (21, 10565451), (27, 8217573), (31, 7157241), (39, 5689089), (63, 3521817), (81, 2739191), (91, 2438181), (93, 2385747), (117, 1896363), (189, 1173939), (217, 1022463), (273, 812727), (279, 795249), (351, 632121), (403, 550557), (567, 391313), (651, 340821), (819, 270909), (837, 265083), (971, 228501), (1053, 210707), (1209, 183519), (1953, 113607), (2457, 90303), (2511, 88361), (2821, 78651), (2913, 76167), (3627, 61173), (5859, 37869), (6797, 32643), (7371, 30101), (8463, 26217), (8739, 25389), (10881, 20391), (12623, 17577)]