21552840

素因数分解:

$2^3\times 3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{137}}^1$

素因数の和:196

約数の個数: 192

約数和(自身を含む): 77500800

約数和(自身を除く): 55947960

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 19, 20, 23, 24, 30, 36, 38, 40, 45, 46, 57, 60, 69, 72, 76, 90, 92, 95, 114, 115, 120, 137, 138, 152, 171, 180, 184, 190, 207, 228, 230, 274, 276, 285, 342, 345, 360, 380, 411, 414, 437, 456, 460, 548, 552, 570, 684, 685, 690, 760, 822, 828, 855, 874, 920, 1035, 1096, 1140, 1233, 1311, 1368, 1370, 1380, 1644, 1656, 1710, 1748, 2055, 2070, 2185, 2280, 2466, 2603, 2622, 2740, 2760, 3151, 3288, 3420, 3496, 3933, 4110, 4140, 4370, 4932, 5206, 5244, 5480, 6165, 6302, 6555, 6840, 7809, 7866, 8220, 8280, 8740, 9453, 9864, 10412, 10488, 12330, 12604, 13015, 13110, 15618, 15732, 15755, 16440, 17480, 18906, 19665, 20824, 23427, 24660, 25208, 26030, 26220, 28359, 31236, 31464, 31510, 37812, 39045, 39330, 46854, 47265, 49320, 52060, 52440, 56718, 59869, 62472, 63020, 75624, 78090, 78660, 93708, 94530, 104120, 113436, 117135, 119738, 126040, 141795, 156180, 157320, 179607, 187416, 189060, 226872, 234270, 239476, 283590, 299345, 312360, 359214, 378120, 468540, 478952, 538821, 567180, 598690, 718428, 898035, 937080, 1077642, 1134360, 1197380, 1436856, 1796070, 2155284, 2394760, 2694105, 3592140, 4310568, 5388210, 7184280, 10776420, 21552840]

約数ペア:

[(1, 21552840), (2, 10776420), (3, 7184280), (4, 5388210), (5, 4310568), (6, 3592140), (8, 2694105), (9, 2394760), (10, 2155284), (12, 1796070), (15, 1436856), (18, 1197380), (19, 1134360), (20, 1077642), (23, 937080), (24, 898035), (30, 718428), (36, 598690), (38, 567180), (40, 538821), (45, 478952), (46, 468540), (57, 378120), (60, 359214), (69, 312360), (72, 299345), (76, 283590), (90, 239476), (92, 234270), (95, 226872), (114, 189060), (115, 187416), (120, 179607), (137, 157320), (138, 156180), (152, 141795), (171, 126040), (180, 119738), (184, 117135), (190, 113436), (207, 104120), (228, 94530), (230, 93708), (274, 78660), (276, 78090), (285, 75624), (342, 63020), (345, 62472), (360, 59869), (380, 56718), (411, 52440), (414, 52060), (437, 49320), (456, 47265), (460, 46854), (548, 39330), (552, 39045), (570, 37812), (684, 31510), (685, 31464), (690, 31236), (760, 28359), (822, 26220), (828, 26030), (855, 25208), (874, 24660), (920, 23427), (1035, 20824), (1096, 19665), (1140, 18906), (1233, 17480), (1311, 16440), (1368, 15755), (1370, 15732), (1380, 15618), (1644, 13110), (1656, 13015), (1710, 12604), (1748, 12330), (2055, 10488), (2070, 10412), (2185, 9864), (2280, 9453), (2466, 8740), (2603, 8280), (2622, 8220), (2740, 7866), (2760, 7809), (3151, 6840), (3288, 6555), (3420, 6302), (3496, 6165), (3933, 5480), (4110, 5244), (4140, 5206), (4370, 4932)]