21178584

素因数分解:

$2^3\times 3^4\times 7^2\times {\mathrm{23}}^1\times {\mathrm{29}}^1$

素因数の和:84

約数の個数: 240

約数和(自身を含む): 74487600

約数和(自身を除く): 53309016

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 18, 21, 23, 24, 27, 28, 29, 36, 42, 46, 49, 54, 56, 58, 63, 69, 72, 81, 84, 87, 92, 98, 108, 116, 126, 138, 147, 161, 162, 168, 174, 184, 189, 196, 203, 207, 216, 232, 252, 261, 276, 294, 322, 324, 348, 378, 392, 406, 414, 441, 483, 504, 522, 552, 567, 588, 609, 621, 644, 648, 667, 696, 756, 783, 812, 828, 882, 966, 1044, 1127, 1134, 1176, 1218, 1242, 1288, 1323, 1334, 1421, 1449, 1512, 1566, 1624, 1656, 1764, 1827, 1863, 1932, 2001, 2088, 2254, 2268, 2349, 2436, 2484, 2646, 2668, 2842, 2898, 3132, 3381, 3528, 3654, 3726, 3864, 3969, 4002, 4263, 4347, 4508, 4536, 4669, 4698, 4872, 4968, 5292, 5336, 5481, 5684, 5796, 6003, 6264, 6762, 7308, 7452, 7938, 8004, 8526, 8694, 9016, 9338, 9396, 10143, 10584, 10962, 11368, 11592, 12006, 12789, 13041, 13524, 14007, 14616, 14904, 15876, 16008, 16443, 17052, 17388, 18009, 18676, 18792, 20286, 21924, 24012, 25578, 26082, 27048, 28014, 30429, 31752, 32683, 32886, 34104, 34776, 36018, 37352, 38367, 40572, 42021, 43848, 48024, 51156, 52164, 54027, 56028, 60858, 65366, 65772, 72036, 76734, 81144, 84042, 91287, 98049, 102312, 104328, 108054, 112056, 115101, 121716, 126063, 130732, 131544, 144072, 153468, 168084, 182574, 196098, 216108, 230202, 243432, 252126, 261464, 294147, 306936, 336168, 365148, 378189, 392196, 432216, 460404, 504252, 588294, 730296, 756378, 784392, 882441, 920808, 1008504, 1176588, 1512756, 1764882, 2353176, 2647323, 3025512, 3529764, 5294646, 7059528, 10589292, 21178584]

約数ペア:

[(1, 21178584), (2, 10589292), (3, 7059528), (4, 5294646), (6, 3529764), (7, 3025512), (8, 2647323), (9, 2353176), (12, 1764882), (14, 1512756), (18, 1176588), (21, 1008504), (23, 920808), (24, 882441), (27, 784392), (28, 756378), (29, 730296), (36, 588294), (42, 504252), (46, 460404), (49, 432216), (54, 392196), (56, 378189), (58, 365148), (63, 336168), (69, 306936), (72, 294147), (81, 261464), (84, 252126), (87, 243432), (92, 230202), (98, 216108), (108, 196098), (116, 182574), (126, 168084), (138, 153468), (147, 144072), (161, 131544), (162, 130732), (168, 126063), (174, 121716), (184, 115101), (189, 112056), (196, 108054), (203, 104328), (207, 102312), (216, 98049), (232, 91287), (252, 84042), (261, 81144), (276, 76734), (294, 72036), (322, 65772), (324, 65366), (348, 60858), (378, 56028), (392, 54027), (406, 52164), (414, 51156), (441, 48024), (483, 43848), (504, 42021), (522, 40572), (552, 38367), (567, 37352), (588, 36018), (609, 34776), (621, 34104), (644, 32886), (648, 32683), (667, 31752), (696, 30429), (756, 28014), (783, 27048), (812, 26082), (828, 25578), (882, 24012), (966, 21924), (1044, 20286), (1127, 18792), (1134, 18676), (1176, 18009), (1218, 17388), (1242, 17052), (1288, 16443), (1323, 16008), (1334, 15876), (1421, 14904), (1449, 14616), (1512, 14007), (1566, 13524), (1624, 13041), (1656, 12789), (1764, 12006), (1827, 11592), (1863, 11368), (1932, 10962), (2001, 10584), (2088, 10143), (2254, 9396), (2268, 9338), (2349, 9016), (2436, 8694), (2484, 8526), (2646, 8004), (2668, 7938), (2842, 7452), (2898, 7308), (3132, 6762), (3381, 6264), (3528, 6003), (3654, 5796), (3726, 5684), (3864, 5481), (3969, 5336), (4002, 5292), (4263, 4968), (4347, 4872), (4508, 4698), (4536, 4669)]