21000791520

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{613}}^1\times {\mathrm{643}}^1$

素因数の和:1314

約数の個数: 288

約数和(自身を含む): 73836820512

約数和(自身を除く): 52836028992

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 32, 36, 37, 40, 45, 48, 60, 72, 74, 80, 90, 96, 111, 120, 144, 148, 160, 180, 185, 222, 240, 288, 296, 333, 360, 370, 444, 480, 555, 592, 613, 643, 666, 720, 740, 888, 1110, 1184, 1226, 1286, 1332, 1440, 1480, 1665, 1776, 1839, 1929, 2220, 2452, 2572, 2664, 2960, 3065, 3215, 3330, 3552, 3678, 3858, 4440, 4904, 5144, 5328, 5517, 5787, 5920, 6130, 6430, 6660, 7356, 7716, 8880, 9195, 9645, 9808, 10288, 10656, 11034, 11574, 12260, 12860, 13320, 14712, 15432, 17760, 18390, 19290, 19616, 20576, 22068, 22681, 23148, 23791, 24520, 25720, 26640, 27585, 28935, 29424, 30864, 36780, 38580, 44136, 45362, 46296, 47582, 49040, 51440, 53280, 55170, 57870, 58848, 61728, 68043, 71373, 73560, 77160, 88272, 90724, 92592, 95164, 98080, 102880, 110340, 113405, 115740, 118955, 136086, 142746, 147120, 154320, 176544, 181448, 185184, 190328, 204129, 214119, 220680, 226810, 231480, 237910, 272172, 285492, 294240, 308640, 340215, 356865, 362896, 380656, 394159, 408258, 428238, 441360, 453620, 462960, 475820, 544344, 570984, 680430, 713730, 725792, 761312, 788318, 816516, 856476, 882720, 907240, 925920, 951640, 1020645, 1070595, 1088688, 1141968, 1182477, 1360860, 1427460, 1576636, 1633032, 1712952, 1814480, 1903280, 1970795, 2041290, 2141190, 2177376, 2283936, 2364954, 2721720, 2854920, 3153272, 3266064, 3425904, 3547431, 3628960, 3806560, 3941590, 4082580, 4282380, 4729908, 5443440, 5709840, 5912385, 6306544, 6532128, 6851808, 7094862, 7883180, 8165160, 8564760, 9459816, 10886880, 11419680, 11824770, 12613088, 14189724, 14583883, 15766360, 16330320, 17129520, 17737155, 18919632, 23649540, 28379448, 29167766, 31532720, 32660640, 34259040, 35474310, 37839264, 43751649, 47299080, 56758896, 58335532, 63065440, 70948620, 72919415, 87503298, 94598160, 113517792, 116671064, 131254947, 141897240, 145838830, 175006596, 189196320, 218758245, 233342128, 262509894, 283794480, 291677660, 350013192, 437516490, 466684256, 525019788, 567588960, 583355320, 656274735, 700026384, 875032980, 1050039576, 1166710640, 1312549470, 1400052768, 1750065960, 2100079152, 2333421280, 2625098940, 3500131920, 4200158304, 5250197880, 7000263840, 10500395760, 21000791520]

約数ペア:

[(1, 21000791520), (2, 10500395760), (3, 7000263840), (4, 5250197880), (5, 4200158304), (6, 3500131920), (8, 2625098940), (9, 2333421280), (10, 2100079152), (12, 1750065960), (15, 1400052768), (16, 1312549470), (18, 1166710640), (20, 1050039576), (24, 875032980), (30, 700026384), (32, 656274735), (36, 583355320), (37, 567588960), (40, 525019788), (45, 466684256), (48, 437516490), (60, 350013192), (72, 291677660), (74, 283794480), (80, 262509894), (90, 233342128), (96, 218758245), (111, 189196320), (120, 175006596), (144, 145838830), (148, 141897240), (160, 131254947), (180, 116671064), (185, 113517792), (222, 94598160), (240, 87503298), (288, 72919415), (296, 70948620), (333, 63065440), (360, 58335532), (370, 56758896), (444, 47299080), (480, 43751649), (555, 37839264), (592, 35474310), (613, 34259040), (643, 32660640), (666, 31532720), (720, 29167766), (740, 28379448), (888, 23649540), (1110, 18919632), (1184, 17737155), (1226, 17129520), (1286, 16330320), (1332, 15766360), (1440, 14583883), (1480, 14189724), (1665, 12613088), (1776, 11824770), (1839, 11419680), (1929, 10886880), (2220, 9459816), (2452, 8564760), (2572, 8165160), (2664, 7883180), (2960, 7094862), (3065, 6851808), (3215, 6532128), (3330, 6306544), (3552, 5912385), (3678, 5709840), (3858, 5443440), (4440, 4729908), (4904, 4282380), (5144, 4082580), (5328, 3941590), (5517, 3806560), (5787, 3628960), (5920, 3547431), (6130, 3425904), (6430, 3266064), (6660, 3153272), (7356, 2854920), (7716, 2721720), (8880, 2364954), (9195, 2283936), (9645, 2177376), (9808, 2141190), (10288, 2041290), (10656, 1970795), (11034, 1903280), (11574, 1814480), (12260, 1712952), (12860, 1633032), (13320, 1576636), (14712, 1427460), (15432, 1360860), (17760, 1182477), (18390, 1141968), (19290, 1088688), (19616, 1070595), (20576, 1020645), (22068, 951640), (22681, 925920), (23148, 907240), (23791, 882720), (24520, 856476), (25720, 816516), (26640, 788318), (27585, 761312), (28935, 725792), (29424, 713730), (30864, 680430), (36780, 570984), (38580, 544344), (44136, 475820), (45362, 462960), (46296, 453620), (47582, 441360), (49040, 428238), (51440, 408258), (53280, 394159), (55170, 380656), (57870, 362896), (58848, 356865), (61728, 340215), (68043, 308640), (71373, 294240), (73560, 285492), (77160, 272172), (88272, 237910), (90724, 231480), (92592, 226810), (95164, 220680), (98080, 214119), (102880, 204129), (110340, 190328), (113405, 185184), (115740, 181448), (118955, 176544), (136086, 154320), (142746, 147120)]