21807303840

素因数分解:

$2^5\times 3^3\times 5^1\times 7^1\times {\mathrm{721141}}^1$

素因数の和:721172

約数の個数: 192

約数和(自身を含む): 87229336320

約数和(自身を除く): 65422032480

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 16, 18, 20, 21, 24, 27, 28, 30, 32, 35, 36, 40, 42, 45, 48, 54, 56, 60, 63, 70, 72, 80, 84, 90, 96, 105, 108, 112, 120, 126, 135, 140, 144, 160, 168, 180, 189, 210, 216, 224, 240, 252, 270, 280, 288, 315, 336, 360, 378, 420, 432, 480, 504, 540, 560, 630, 672, 720, 756, 840, 864, 945, 1008, 1080, 1120, 1260, 1440, 1512, 1680, 1890, 2016, 2160, 2520, 3024, 3360, 3780, 4320, 5040, 6048, 7560, 10080, 15120, 30240, 721141, 1442282, 2163423, 2884564, 3605705, 4326846, 5047987, 5769128, 6490269, 7211410, 8653692, 10095974, 10817115, 11538256, 12980538, 14422820, 15143961, 17307384, 19470807, 20191948, 21634230, 23076512, 25239935, 25961076, 28845640, 30287922, 32451345, 34614768, 38941614, 40383896, 43268460, 45431883, 50479870, 51922152, 57691280, 60575844, 64902690, 69229536, 75719805, 77883228, 80767792, 86536920, 90863766, 97354035, 100959740, 103844304, 115382560, 121151688, 129805380, 136295649, 151439610, 155766456, 161535584, 173073840, 181727532, 194708070, 201919480, 207688608, 227159415, 242303376, 259610760, 272591298, 302879220, 311532912, 346147680, 363455064, 389416140, 403838960, 454318830, 484606752, 519221520, 545182596, 605758440, 623065824, 681478245, 726910128, 778832280, 807677920, 908637660, 1038443040, 1090365192, 1211516880, 1362956490, 1453820256, 1557664560, 1817275320, 2180730384, 2423033760, 2725912980, 3115329120, 3634550640, 4361460768, 5451825960, 7269101280, 10903651920, 21807303840]

約数ペア:

[(1, 21807303840), (2, 10903651920), (3, 7269101280), (4, 5451825960), (5, 4361460768), (6, 3634550640), (7, 3115329120), (8, 2725912980), (9, 2423033760), (10, 2180730384), (12, 1817275320), (14, 1557664560), (15, 1453820256), (16, 1362956490), (18, 1211516880), (20, 1090365192), (21, 1038443040), (24, 908637660), (27, 807677920), (28, 778832280), (30, 726910128), (32, 681478245), (35, 623065824), (36, 605758440), (40, 545182596), (42, 519221520), (45, 484606752), (48, 454318830), (54, 403838960), (56, 389416140), (60, 363455064), (63, 346147680), (70, 311532912), (72, 302879220), (80, 272591298), (84, 259610760), (90, 242303376), (96, 227159415), (105, 207688608), (108, 201919480), (112, 194708070), (120, 181727532), (126, 173073840), (135, 161535584), (140, 155766456), (144, 151439610), (160, 136295649), (168, 129805380), (180, 121151688), (189, 115382560), (210, 103844304), (216, 100959740), (224, 97354035), (240, 90863766), (252, 86536920), (270, 80767792), (280, 77883228), (288, 75719805), (315, 69229536), (336, 64902690), (360, 60575844), (378, 57691280), (420, 51922152), (432, 50479870), (480, 45431883), (504, 43268460), (540, 40383896), (560, 38941614), (630, 34614768), (672, 32451345), (720, 30287922), (756, 28845640), (840, 25961076), (864, 25239935), (945, 23076512), (1008, 21634230), (1080, 20191948), (1120, 19470807), (1260, 17307384), (1440, 15143961), (1512, 14422820), (1680, 12980538), (1890, 11538256), (2016, 10817115), (2160, 10095974), (2520, 8653692), (3024, 7211410), (3360, 6490269), (3780, 5769128), (4320, 5047987), (5040, 4326846), (6048, 3605705), (7560, 2884564), (10080, 2163423), (15120, 1442282), (30240, 721141)]