20967408

素因数分解:

$2^4\times 3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1$

素因数の和:124

約数の個数: 240

約数和(自身を含む): 76756992

約数和(自身を除く): 55789584

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 11, 12, 14, 16, 18, 21, 22, 24, 28, 31, 33, 36, 42, 44, 48, 56, 61, 62, 63, 66, 72, 77, 84, 88, 93, 99, 112, 122, 124, 126, 132, 144, 154, 168, 176, 183, 186, 198, 217, 231, 244, 248, 252, 264, 279, 308, 336, 341, 366, 372, 396, 427, 434, 462, 488, 496, 504, 528, 549, 558, 616, 651, 671, 682, 693, 732, 744, 792, 854, 868, 924, 976, 1008, 1023, 1098, 1116, 1232, 1281, 1302, 1342, 1364, 1386, 1464, 1488, 1584, 1708, 1736, 1848, 1891, 1953, 2013, 2046, 2196, 2232, 2387, 2562, 2604, 2684, 2728, 2772, 2928, 3069, 3416, 3472, 3696, 3782, 3843, 3906, 4026, 4092, 4392, 4464, 4697, 4774, 5124, 5208, 5368, 5456, 5544, 5673, 6039, 6138, 6832, 7161, 7564, 7686, 7812, 8052, 8184, 8784, 9394, 9548, 10248, 10416, 10736, 11088, 11346, 12078, 12276, 13237, 14091, 14322, 15128, 15372, 15624, 16104, 16368, 17019, 18788, 19096, 20496, 20801, 21483, 22692, 24156, 24552, 26474, 28182, 28644, 30256, 30744, 31248, 32208, 34038, 37576, 38192, 39711, 41602, 42273, 42966, 45384, 48312, 49104, 52948, 56364, 57288, 61488, 62403, 68076, 75152, 79422, 83204, 84546, 85932, 90768, 96624, 105896, 112728, 114576, 119133, 124806, 136152, 145607, 158844, 166408, 169092, 171864, 187209, 211792, 225456, 238266, 249612, 272304, 291214, 317688, 332816, 338184, 343728, 374418, 436821, 476532, 499224, 582428, 635376, 676368, 748836, 873642, 953064, 998448, 1164856, 1310463, 1497672, 1747284, 1906128, 2329712, 2620926, 2995344, 3494568, 5241852, 6989136, 10483704, 20967408]

約数ペア:

[(1, 20967408), (2, 10483704), (3, 6989136), (4, 5241852), (6, 3494568), (7, 2995344), (8, 2620926), (9, 2329712), (11, 1906128), (12, 1747284), (14, 1497672), (16, 1310463), (18, 1164856), (21, 998448), (22, 953064), (24, 873642), (28, 748836), (31, 676368), (33, 635376), (36, 582428), (42, 499224), (44, 476532), (48, 436821), (56, 374418), (61, 343728), (62, 338184), (63, 332816), (66, 317688), (72, 291214), (77, 272304), (84, 249612), (88, 238266), (93, 225456), (99, 211792), (112, 187209), (122, 171864), (124, 169092), (126, 166408), (132, 158844), (144, 145607), (154, 136152), (168, 124806), (176, 119133), (183, 114576), (186, 112728), (198, 105896), (217, 96624), (231, 90768), (244, 85932), (248, 84546), (252, 83204), (264, 79422), (279, 75152), (308, 68076), (336, 62403), (341, 61488), (366, 57288), (372, 56364), (396, 52948), (427, 49104), (434, 48312), (462, 45384), (488, 42966), (496, 42273), (504, 41602), (528, 39711), (549, 38192), (558, 37576), (616, 34038), (651, 32208), (671, 31248), (682, 30744), (693, 30256), (732, 28644), (744, 28182), (792, 26474), (854, 24552), (868, 24156), (924, 22692), (976, 21483), (1008, 20801), (1023, 20496), (1098, 19096), (1116, 18788), (1232, 17019), (1281, 16368), (1302, 16104), (1342, 15624), (1364, 15372), (1386, 15128), (1464, 14322), (1488, 14091), (1584, 13237), (1708, 12276), (1736, 12078), (1848, 11346), (1891, 11088), (1953, 10736), (2013, 10416), (2046, 10248), (2196, 9548), (2232, 9394), (2387, 8784), (2562, 8184), (2604, 8052), (2684, 7812), (2728, 7686), (2772, 7564), (2928, 7161), (3069, 6832), (3416, 6138), (3472, 6039), (3696, 5673), (3782, 5544), (3843, 5456), (3906, 5368), (4026, 5208), (4092, 5124), (4392, 4774), (4464, 4697)]