21125197380

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{97}}^1\times {\mathrm{389}}^1$

素因数の和:579

約数の個数: 384

約数和(自身を含む): 72325693440

約数和(自身を除く): 51200496060

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 31, 35, 42, 43, 60, 62, 70, 84, 86, 93, 97, 105, 124, 129, 140, 155, 172, 186, 194, 210, 215, 217, 258, 291, 301, 310, 372, 388, 389, 420, 430, 434, 465, 485, 516, 582, 602, 620, 645, 651, 679, 778, 860, 868, 903, 930, 970, 1085, 1164, 1167, 1204, 1290, 1302, 1333, 1358, 1455, 1505, 1556, 1806, 1860, 1940, 1945, 2037, 2170, 2334, 2580, 2604, 2666, 2716, 2723, 2910, 3007, 3010, 3255, 3395, 3612, 3890, 3999, 4074, 4171, 4340, 4515, 4668, 5332, 5446, 5820, 5835, 6014, 6020, 6510, 6665, 6790, 7780, 7998, 8148, 8169, 8342, 9021, 9030, 9331, 10185, 10892, 11670, 12028, 12059, 12513, 13020, 13330, 13580, 13615, 15035, 15996, 16338, 16684, 16727, 18042, 18060, 18662, 19995, 20370, 20855, 21049, 23340, 24118, 25026, 26660, 27230, 27993, 29197, 30070, 32676, 33454, 36084, 36177, 37324, 37733, 39990, 40740, 40845, 41710, 42098, 45105, 46655, 48236, 50052, 50181, 54460, 55986, 58394, 60140, 60295, 62565, 63147, 66908, 72354, 75466, 79980, 81690, 83420, 83635, 84196, 84413, 87591, 90210, 93310, 100362, 105245, 111972, 113199, 116788, 117089, 120590, 125130, 126294, 129301, 139965, 144708, 145985, 150932, 163380, 167270, 168826, 175182, 180420, 180885, 186620, 188665, 200724, 210490, 226398, 234178, 241180, 250260, 250905, 252588, 253239, 258602, 264131, 279930, 291970, 315735, 334540, 337652, 350364, 351267, 361770, 377330, 387903, 420980, 422065, 437955, 452796, 468356, 501810, 506478, 517204, 518537, 528262, 559860, 565995, 583940, 585445, 631470, 646505, 702534, 723540, 754660, 775806, 792393, 844130, 875910, 905107, 1003620, 1012956, 1037074, 1056524, 1131990, 1169723, 1170890, 1262940, 1266195, 1293010, 1320655, 1405068, 1551612, 1555611, 1584786, 1622519, 1688260, 1751820, 1756335, 1810214, 1939515, 2074148, 2263980, 2339446, 2341780, 2532390, 2586020, 2592685, 2641310, 2715321, 3111222, 3169572, 3245038, 3509169, 3512670, 3620428, 3629759, 3879030, 3961965, 4525535, 4678892, 4867557, 5064780, 5185370, 5282620, 5430642, 5848615, 6222444, 6490076, 7018338, 7025340, 7259518, 7758060, 7778055, 7923930, 8112595, 8188061, 9051070, 9735114, 10370740, 10861284, 10889277, 11357633, 11697230, 13576605, 14036676, 14519036, 15556110, 15847860, 16225190, 16376122, 17545845, 18102140, 18148795, 19470228, 21778554, 22715266, 23394460, 24337785, 24564183, 27153210, 31112220, 32450380, 32752244, 34072899, 35091690, 36297590, 40940305, 43557108, 45430532, 48675570, 49128366, 50298089, 54306420, 54446385, 56788165, 68145798, 70183380, 72595180, 81880610, 97351140, 98256732, 100596178, 108892770, 113576330, 122820915, 136291596, 150894267, 163761220, 170364495, 201192356, 217785540, 227152660, 245641830, 251490445, 301788534, 340728990, 352086623, 491283660, 502980890, 603577068, 681457980, 704173246, 754471335, 1005961780, 1056259869, 1408346492, 1508942670, 1760433115, 2112519738, 3017885340, 3520866230, 4225039476, 5281299345, 7041732460, 10562598690, 21125197380]

約数ペア:

[(1, 21125197380), (2, 10562598690), (3, 7041732460), (4, 5281299345), (5, 4225039476), (6, 3520866230), (7, 3017885340), (10, 2112519738), (12, 1760433115), (14, 1508942670), (15, 1408346492), (20, 1056259869), (21, 1005961780), (28, 754471335), (30, 704173246), (31, 681457980), (35, 603577068), (42, 502980890), (43, 491283660), (60, 352086623), (62, 340728990), (70, 301788534), (84, 251490445), (86, 245641830), (93, 227152660), (97, 217785540), (105, 201192356), (124, 170364495), (129, 163761220), (140, 150894267), (155, 136291596), (172, 122820915), (186, 113576330), (194, 108892770), (210, 100596178), (215, 98256732), (217, 97351140), (258, 81880610), (291, 72595180), (301, 70183380), (310, 68145798), (372, 56788165), (388, 54446385), (389, 54306420), (420, 50298089), (430, 49128366), (434, 48675570), (465, 45430532), (485, 43557108), (516, 40940305), (582, 36297590), (602, 35091690), (620, 34072899), (645, 32752244), (651, 32450380), (679, 31112220), (778, 27153210), (860, 24564183), (868, 24337785), (903, 23394460), (930, 22715266), (970, 21778554), (1085, 19470228), (1164, 18148795), (1167, 18102140), (1204, 17545845), (1290, 16376122), (1302, 16225190), (1333, 15847860), (1358, 15556110), (1455, 14519036), (1505, 14036676), (1556, 13576605), (1806, 11697230), (1860, 11357633), (1940, 10889277), (1945, 10861284), (2037, 10370740), (2170, 9735114), (2334, 9051070), (2580, 8188061), (2604, 8112595), (2666, 7923930), (2716, 7778055), (2723, 7758060), (2910, 7259518), (3007, 7025340), (3010, 7018338), (3255, 6490076), (3395, 6222444), (3612, 5848615), (3890, 5430642), (3999, 5282620), (4074, 5185370), (4171, 5064780), (4340, 4867557), (4515, 4678892), (4668, 4525535), (5332, 3961965), (5446, 3879030), (5820, 3629759), (5835, 3620428), (6014, 3512670), (6020, 3509169), (6510, 3245038), (6665, 3169572), (6790, 3111222), (7780, 2715321), (7998, 2641310), (8148, 2592685), (8169, 2586020), (8342, 2532390), (9021, 2341780), (9030, 2339446), (9331, 2263980), (10185, 2074148), (10892, 1939515), (11670, 1810214), (12028, 1756335), (12059, 1751820), (12513, 1688260), (13020, 1622519), (13330, 1584786), (13580, 1555611), (13615, 1551612), (15035, 1405068), (15996, 1320655), (16338, 1293010), (16684, 1266195), (16727, 1262940), (18042, 1170890), (18060, 1169723), (18662, 1131990), (19995, 1056524), (20370, 1037074), (20855, 1012956), (21049, 1003620), (23340, 905107), (24118, 875910), (25026, 844130), (26660, 792393), (27230, 775806), (27993, 754660), (29197, 723540), (30070, 702534), (32676, 646505), (33454, 631470), (36084, 585445), (36177, 583940), (37324, 565995), (37733, 559860), (39990, 528262), (40740, 518537), (40845, 517204), (41710, 506478), (42098, 501810), (45105, 468356), (46655, 452796), (48236, 437955), (50052, 422065), (50181, 420980), (54460, 387903), (55986, 377330), (58394, 361770), (60140, 351267), (60295, 350364), (62565, 337652), (63147, 334540), (66908, 315735), (72354, 291970), (75466, 279930), (79980, 264131), (81690, 258602), (83420, 253239), (83635, 252588), (84196, 250905), (84413, 250260), (87591, 241180), (90210, 234178), (93310, 226398), (100362, 210490), (105245, 200724), (111972, 188665), (113199, 186620), (116788, 180885), (117089, 180420), (120590, 175182), (125130, 168826), (126294, 167270), (129301, 163380), (139965, 150932), (144708, 145985)]