21097440

素因数分解:

$2^5\times 3^2\times 5^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1$

素因数の和:71

約数の個数: 432

約数和(自身を含む): 94112928

約数和(自身を除く): 73015488

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 13, 14, 15, 16, 18, 20, 21, 23, 24, 26, 28, 30, 32, 35, 36, 39, 40, 42, 45, 46, 48, 49, 52, 56, 60, 63, 65, 69, 70, 72, 78, 80, 84, 90, 91, 92, 96, 98, 104, 105, 112, 115, 117, 120, 126, 130, 138, 140, 144, 147, 156, 160, 161, 168, 180, 182, 184, 195, 196, 207, 208, 210, 224, 230, 234, 240, 245, 252, 260, 273, 276, 280, 288, 294, 299, 312, 315, 322, 336, 345, 360, 364, 368, 390, 392, 414, 416, 420, 441, 455, 460, 468, 480, 483, 490, 504, 520, 546, 552, 560, 585, 588, 598, 624, 630, 637, 644, 672, 690, 720, 728, 735, 736, 780, 784, 805, 819, 828, 840, 882, 897, 910, 920, 936, 966, 980, 1008, 1035, 1040, 1092, 1104, 1120, 1127, 1170, 1176, 1196, 1248, 1260, 1274, 1288, 1365, 1380, 1440, 1449, 1456, 1470, 1495, 1560, 1568, 1610, 1638, 1656, 1680, 1764, 1794, 1820, 1840, 1872, 1911, 1932, 1960, 2016, 2070, 2080, 2093, 2184, 2205, 2208, 2254, 2340, 2352, 2392, 2415, 2520, 2548, 2576, 2691, 2730, 2760, 2898, 2912, 2940, 2990, 3120, 3185, 3220, 3276, 3312, 3360, 3381, 3528, 3588, 3640, 3680, 3744, 3822, 3864, 3920, 4095, 4140, 4186, 4368, 4410, 4485, 4508, 4680, 4704, 4784, 4830, 5040, 5096, 5152, 5382, 5460, 5520, 5635, 5733, 5796, 5880, 5980, 6240, 6279, 6370, 6440, 6552, 6624, 6762, 7056, 7176, 7245, 7280, 7644, 7728, 7840, 8190, 8280, 8372, 8736, 8820, 8970, 9016, 9360, 9555, 9568, 9660, 10080, 10143, 10192, 10465, 10764, 10920, 11040, 11270, 11466, 11592, 11760, 11960, 12558, 12740, 12880, 13104, 13455, 13524, 14112, 14352, 14490, 14560, 14651, 15288, 15456, 16380, 16560, 16744, 16905, 17640, 17940, 18032, 18720, 18837, 19110, 19320, 20286, 20384, 20930, 21528, 21840, 22540, 22932, 23184, 23520, 23920, 25116, 25480, 25760, 26208, 26910, 27048, 28665, 28704, 28980, 29302, 30576, 31395, 32760, 33120, 33488, 33810, 35280, 35880, 36064, 37674, 38220, 38640, 40572, 41860, 43056, 43680, 43953, 45080, 45864, 46368, 47840, 50232, 50715, 50960, 53820, 54096, 57330, 57960, 58604, 61152, 62790, 65520, 66976, 67620, 70560, 71760, 73255, 75348, 76440, 77280, 81144, 83720, 86112, 87906, 90160, 91728, 94185, 100464, 101430, 101920, 107640, 108192, 114660, 115920, 117208, 125580, 131040, 131859, 135240, 143520, 146510, 150696, 152880, 162288, 167440, 175812, 180320, 183456, 188370, 200928, 202860, 215280, 219765, 229320, 231840, 234416, 251160, 263718, 270480, 293020, 301392, 305760, 324576, 334880, 351624, 376740, 405720, 430560, 439530, 458640, 468832, 502320, 527436, 540960, 586040, 602784, 659295, 703248, 753480, 811440, 879060, 917280, 1004640, 1054872, 1172080, 1318590, 1406496, 1506960, 1622880, 1758120, 2109744, 2344160, 2637180, 3013920, 3516240, 4219488, 5274360, 7032480, 10548720, 21097440]

約数ペア:

[(1, 21097440), (2, 10548720), (3, 7032480), (4, 5274360), (5, 4219488), (6, 3516240), (7, 3013920), (8, 2637180), (9, 2344160), (10, 2109744), (12, 1758120), (13, 1622880), (14, 1506960), (15, 1406496), (16, 1318590), (18, 1172080), (20, 1054872), (21, 1004640), (23, 917280), (24, 879060), (26, 811440), (28, 753480), (30, 703248), (32, 659295), (35, 602784), (36, 586040), (39, 540960), (40, 527436), (42, 502320), (45, 468832), (46, 458640), (48, 439530), (49, 430560), (52, 405720), (56, 376740), (60, 351624), (63, 334880), (65, 324576), (69, 305760), (70, 301392), (72, 293020), (78, 270480), (80, 263718), (84, 251160), (90, 234416), (91, 231840), (92, 229320), (96, 219765), (98, 215280), (104, 202860), (105, 200928), (112, 188370), (115, 183456), (117, 180320), (120, 175812), (126, 167440), (130, 162288), (138, 152880), (140, 150696), (144, 146510), (147, 143520), (156, 135240), (160, 131859), (161, 131040), (168, 125580), (180, 117208), (182, 115920), (184, 114660), (195, 108192), (196, 107640), (207, 101920), (208, 101430), (210, 100464), (224, 94185), (230, 91728), (234, 90160), (240, 87906), (245, 86112), (252, 83720), (260, 81144), (273, 77280), (276, 76440), (280, 75348), (288, 73255), (294, 71760), (299, 70560), (312, 67620), (315, 66976), (322, 65520), (336, 62790), (345, 61152), (360, 58604), (364, 57960), (368, 57330), (390, 54096), (392, 53820), (414, 50960), (416, 50715), (420, 50232), (441, 47840), (455, 46368), (460, 45864), (468, 45080), (480, 43953), (483, 43680), (490, 43056), (504, 41860), (520, 40572), (546, 38640), (552, 38220), (560, 37674), (585, 36064), (588, 35880), (598, 35280), (624, 33810), (630, 33488), (637, 33120), (644, 32760), (672, 31395), (690, 30576), (720, 29302), (728, 28980), (735, 28704), (736, 28665), (780, 27048), (784, 26910), (805, 26208), (819, 25760), (828, 25480), (840, 25116), (882, 23920), (897, 23520), (910, 23184), (920, 22932), (936, 22540), (966, 21840), (980, 21528), (1008, 20930), (1035, 20384), (1040, 20286), (1092, 19320), (1104, 19110), (1120, 18837), (1127, 18720), (1170, 18032), (1176, 17940), (1196, 17640), (1248, 16905), (1260, 16744), (1274, 16560), (1288, 16380), (1365, 15456), (1380, 15288), (1440, 14651), (1449, 14560), (1456, 14490), (1470, 14352), (1495, 14112), (1560, 13524), (1568, 13455), (1610, 13104), (1638, 12880), (1656, 12740), (1680, 12558), (1764, 11960), (1794, 11760), (1820, 11592), (1840, 11466), (1872, 11270), (1911, 11040), (1932, 10920), (1960, 10764), (2016, 10465), (2070, 10192), (2080, 10143), (2093, 10080), (2184, 9660), (2205, 9568), (2208, 9555), (2254, 9360), (2340, 9016), (2352, 8970), (2392, 8820), (2415, 8736), (2520, 8372), (2548, 8280), (2576, 8190), (2691, 7840), (2730, 7728), (2760, 7644), (2898, 7280), (2912, 7245), (2940, 7176), (2990, 7056), (3120, 6762), (3185, 6624), (3220, 6552), (3276, 6440), (3312, 6370), (3360, 6279), (3381, 6240), (3528, 5980), (3588, 5880), (3640, 5796), (3680, 5733), (3744, 5635), (3822, 5520), (3864, 5460), (3920, 5382), (4095, 5152), (4140, 5096), (4186, 5040), (4368, 4830), (4410, 4784), (4485, 4704), (4508, 4680)]