21123648

素因数分解:

$2^6\times 3^2\times 7^1\times {\mathrm{13}}^2\times {\mathrm{31}}^1$

素因数の和:82

約数の個数: 252

約数和(自身を含む): 77346048

約数和(自身を除く): 56222400

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 13, 14, 16, 18, 21, 24, 26, 28, 31, 32, 36, 39, 42, 48, 52, 56, 62, 63, 64, 72, 78, 84, 91, 93, 96, 104, 112, 117, 124, 126, 144, 156, 168, 169, 182, 186, 192, 208, 217, 224, 234, 248, 252, 273, 279, 288, 312, 336, 338, 364, 372, 403, 416, 434, 448, 468, 496, 504, 507, 546, 558, 576, 624, 651, 672, 676, 728, 744, 806, 819, 832, 868, 936, 992, 1008, 1014, 1092, 1116, 1183, 1209, 1248, 1302, 1344, 1352, 1456, 1488, 1521, 1612, 1638, 1736, 1872, 1953, 1984, 2016, 2028, 2184, 2232, 2366, 2418, 2496, 2604, 2704, 2821, 2912, 2976, 3042, 3224, 3276, 3472, 3549, 3627, 3744, 3906, 4032, 4056, 4368, 4464, 4732, 4836, 5208, 5239, 5408, 5642, 5824, 5952, 6084, 6448, 6552, 6944, 7098, 7254, 7488, 7812, 8112, 8463, 8736, 8928, 9464, 9672, 10416, 10478, 10647, 10816, 11284, 12168, 12896, 13104, 13888, 14196, 14508, 15624, 15717, 16224, 16926, 17472, 17856, 18928, 19344, 20832, 20956, 21294, 22568, 24336, 25389, 25792, 26208, 28392, 29016, 31248, 31434, 32448, 33852, 36673, 37856, 38688, 41664, 41912, 42588, 45136, 47151, 48672, 50778, 52416, 56784, 58032, 62496, 62868, 67704, 73346, 75712, 77376, 83824, 85176, 90272, 94302, 97344, 101556, 110019, 113568, 116064, 124992, 125736, 135408, 146692, 167648, 170352, 180544, 188604, 203112, 220038, 227136, 232128, 251472, 270816, 293384, 330057, 335296, 340704, 377208, 406224, 440076, 502944, 541632, 586768, 660114, 681408, 754416, 812448, 880152, 1005888, 1173536, 1320228, 1508832, 1624896, 1760304, 2347072, 2640456, 3017664, 3520608, 5280912, 7041216, 10561824, 21123648]

約数ペア:

[(1, 21123648), (2, 10561824), (3, 7041216), (4, 5280912), (6, 3520608), (7, 3017664), (8, 2640456), (9, 2347072), (12, 1760304), (13, 1624896), (14, 1508832), (16, 1320228), (18, 1173536), (21, 1005888), (24, 880152), (26, 812448), (28, 754416), (31, 681408), (32, 660114), (36, 586768), (39, 541632), (42, 502944), (48, 440076), (52, 406224), (56, 377208), (62, 340704), (63, 335296), (64, 330057), (72, 293384), (78, 270816), (84, 251472), (91, 232128), (93, 227136), (96, 220038), (104, 203112), (112, 188604), (117, 180544), (124, 170352), (126, 167648), (144, 146692), (156, 135408), (168, 125736), (169, 124992), (182, 116064), (186, 113568), (192, 110019), (208, 101556), (217, 97344), (224, 94302), (234, 90272), (248, 85176), (252, 83824), (273, 77376), (279, 75712), (288, 73346), (312, 67704), (336, 62868), (338, 62496), (364, 58032), (372, 56784), (403, 52416), (416, 50778), (434, 48672), (448, 47151), (468, 45136), (496, 42588), (504, 41912), (507, 41664), (546, 38688), (558, 37856), (576, 36673), (624, 33852), (651, 32448), (672, 31434), (676, 31248), (728, 29016), (744, 28392), (806, 26208), (819, 25792), (832, 25389), (868, 24336), (936, 22568), (992, 21294), (1008, 20956), (1014, 20832), (1092, 19344), (1116, 18928), (1183, 17856), (1209, 17472), (1248, 16926), (1302, 16224), (1344, 15717), (1352, 15624), (1456, 14508), (1488, 14196), (1521, 13888), (1612, 13104), (1638, 12896), (1736, 12168), (1872, 11284), (1953, 10816), (1984, 10647), (2016, 10478), (2028, 10416), (2184, 9672), (2232, 9464), (2366, 8928), (2418, 8736), (2496, 8463), (2604, 8112), (2704, 7812), (2821, 7488), (2912, 7254), (2976, 7098), (3042, 6944), (3224, 6552), (3276, 6448), (3472, 6084), (3549, 5952), (3627, 5824), (3744, 5642), (3906, 5408), (4032, 5239), (4056, 5208), (4368, 4836), (4464, 4732)]