21561120

素因数分解:

$2^5\times 3^3\times 5^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1$

素因数の和:85

約数の個数: 384

約数和(自身を含む): 92897280

約数和(自身を除く): 71336160

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 23, 24, 27, 28, 30, 31, 32, 35, 36, 40, 42, 45, 46, 48, 54, 56, 60, 62, 63, 69, 70, 72, 80, 84, 90, 92, 93, 96, 105, 108, 112, 115, 120, 124, 126, 135, 138, 140, 144, 155, 160, 161, 168, 180, 184, 186, 189, 207, 210, 216, 217, 224, 230, 240, 248, 252, 270, 276, 279, 280, 288, 310, 315, 322, 336, 345, 360, 368, 372, 378, 414, 420, 432, 434, 460, 465, 480, 483, 496, 504, 540, 552, 558, 560, 620, 621, 630, 644, 651, 672, 690, 713, 720, 736, 744, 756, 805, 828, 837, 840, 864, 868, 920, 930, 945, 966, 992, 1008, 1035, 1080, 1085, 1104, 1116, 1120, 1240, 1242, 1260, 1288, 1302, 1380, 1395, 1426, 1440, 1449, 1488, 1512, 1610, 1656, 1674, 1680, 1736, 1840, 1860, 1890, 1932, 1953, 2016, 2070, 2139, 2160, 2170, 2208, 2232, 2415, 2480, 2484, 2520, 2576, 2604, 2760, 2790, 2852, 2898, 2976, 3024, 3105, 3220, 3255, 3312, 3348, 3360, 3472, 3565, 3680, 3720, 3780, 3864, 3906, 4140, 4185, 4278, 4320, 4340, 4347, 4464, 4830, 4960, 4968, 4991, 5040, 5152, 5208, 5520, 5580, 5704, 5796, 5859, 6048, 6210, 6417, 6440, 6510, 6624, 6696, 6944, 7130, 7245, 7440, 7560, 7728, 7812, 8280, 8370, 8556, 8680, 8694, 8928, 9660, 9765, 9936, 9982, 10080, 10416, 10695, 11040, 11160, 11408, 11592, 11718, 12420, 12834, 12880, 13020, 13392, 14260, 14490, 14880, 14973, 15120, 15456, 15624, 16560, 16740, 17112, 17360, 17388, 19251, 19320, 19530, 19872, 19964, 20832, 21390, 21735, 22320, 22816, 23184, 23436, 24840, 24955, 25668, 25760, 26040, 26784, 28520, 28980, 29295, 29946, 30240, 31248, 32085, 33120, 33480, 34224, 34720, 34776, 38502, 38640, 39060, 39928, 42780, 43470, 44640, 44919, 46368, 46872, 49680, 49910, 51336, 52080, 57040, 57960, 58590, 59892, 62496, 64170, 66960, 68448, 69552, 74865, 77004, 77280, 78120, 79856, 85560, 86940, 89838, 93744, 96255, 99360, 99820, 102672, 104160, 114080, 115920, 117180, 119784, 128340, 133920, 134757, 139104, 149730, 154008, 156240, 159712, 171120, 173880, 179676, 187488, 192510, 199640, 205344, 224595, 231840, 234360, 239568, 256680, 269514, 299460, 308016, 312480, 342240, 347760, 359352, 385020, 399280, 449190, 468720, 479136, 513360, 539028, 598920, 616032, 673785, 695520, 718704, 770040, 798560, 898380, 937440, 1026720, 1078056, 1197840, 1347570, 1437408, 1540080, 1796760, 2156112, 2395680, 2695140, 3080160, 3593520, 4312224, 5390280, 7187040, 10780560, 21561120]

約数ペア:

[(1, 21561120), (2, 10780560), (3, 7187040), (4, 5390280), (5, 4312224), (6, 3593520), (7, 3080160), (8, 2695140), (9, 2395680), (10, 2156112), (12, 1796760), (14, 1540080), (15, 1437408), (16, 1347570), (18, 1197840), (20, 1078056), (21, 1026720), (23, 937440), (24, 898380), (27, 798560), (28, 770040), (30, 718704), (31, 695520), (32, 673785), (35, 616032), (36, 598920), (40, 539028), (42, 513360), (45, 479136), (46, 468720), (48, 449190), (54, 399280), (56, 385020), (60, 359352), (62, 347760), (63, 342240), (69, 312480), (70, 308016), (72, 299460), (80, 269514), (84, 256680), (90, 239568), (92, 234360), (93, 231840), (96, 224595), (105, 205344), (108, 199640), (112, 192510), (115, 187488), (120, 179676), (124, 173880), (126, 171120), (135, 159712), (138, 156240), (140, 154008), (144, 149730), (155, 139104), (160, 134757), (161, 133920), (168, 128340), (180, 119784), (184, 117180), (186, 115920), (189, 114080), (207, 104160), (210, 102672), (216, 99820), (217, 99360), (224, 96255), (230, 93744), (240, 89838), (248, 86940), (252, 85560), (270, 79856), (276, 78120), (279, 77280), (280, 77004), (288, 74865), (310, 69552), (315, 68448), (322, 66960), (336, 64170), (345, 62496), (360, 59892), (368, 58590), (372, 57960), (378, 57040), (414, 52080), (420, 51336), (432, 49910), (434, 49680), (460, 46872), (465, 46368), (480, 44919), (483, 44640), (496, 43470), (504, 42780), (540, 39928), (552, 39060), (558, 38640), (560, 38502), (620, 34776), (621, 34720), (630, 34224), (644, 33480), (651, 33120), (672, 32085), (690, 31248), (713, 30240), (720, 29946), (736, 29295), (744, 28980), (756, 28520), (805, 26784), (828, 26040), (837, 25760), (840, 25668), (864, 24955), (868, 24840), (920, 23436), (930, 23184), (945, 22816), (966, 22320), (992, 21735), (1008, 21390), (1035, 20832), (1080, 19964), (1085, 19872), (1104, 19530), (1116, 19320), (1120, 19251), (1240, 17388), (1242, 17360), (1260, 17112), (1288, 16740), (1302, 16560), (1380, 15624), (1395, 15456), (1426, 15120), (1440, 14973), (1449, 14880), (1488, 14490), (1512, 14260), (1610, 13392), (1656, 13020), (1674, 12880), (1680, 12834), (1736, 12420), (1840, 11718), (1860, 11592), (1890, 11408), (1932, 11160), (1953, 11040), (2016, 10695), (2070, 10416), (2139, 10080), (2160, 9982), (2170, 9936), (2208, 9765), (2232, 9660), (2415, 8928), (2480, 8694), (2484, 8680), (2520, 8556), (2576, 8370), (2604, 8280), (2760, 7812), (2790, 7728), (2852, 7560), (2898, 7440), (2976, 7245), (3024, 7130), (3105, 6944), (3220, 6696), (3255, 6624), (3312, 6510), (3348, 6440), (3360, 6417), (3472, 6210), (3565, 6048), (3680, 5859), (3720, 5796), (3780, 5704), (3864, 5580), (3906, 5520), (4140, 5208), (4185, 5152), (4278, 5040), (4320, 4991), (4340, 4968), (4347, 4960), (4464, 4830)]