21346920

素因数分解:

$2^3\times 3^2\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{197}}^1$

素因数の和:264

約数の個数: 192

約数和(自身を含む): 81544320

約数和(自身を除く): 60197400

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 12, 14, 15, 18, 20, 21, 24, 28, 30, 35, 36, 40, 42, 43, 45, 56, 60, 63, 70, 72, 84, 86, 90, 105, 120, 126, 129, 140, 168, 172, 180, 197, 210, 215, 252, 258, 280, 301, 315, 344, 360, 387, 394, 420, 430, 504, 516, 591, 602, 630, 645, 774, 788, 840, 860, 903, 985, 1032, 1182, 1204, 1260, 1290, 1379, 1505, 1548, 1576, 1720, 1773, 1806, 1935, 1970, 2364, 2408, 2520, 2580, 2709, 2758, 2955, 3010, 3096, 3546, 3612, 3870, 3940, 4137, 4515, 4728, 5160, 5418, 5516, 5910, 6020, 6895, 7092, 7224, 7740, 7880, 8274, 8471, 8865, 9030, 10836, 11032, 11820, 12040, 12411, 13545, 13790, 14184, 15480, 16548, 16942, 17730, 18060, 20685, 21672, 23640, 24822, 25413, 27090, 27580, 33096, 33884, 35460, 36120, 41370, 42355, 49644, 50826, 54180, 55160, 59297, 62055, 67768, 70920, 76239, 82740, 84710, 99288, 101652, 108360, 118594, 124110, 127065, 152478, 165480, 169420, 177891, 203304, 237188, 248220, 254130, 296485, 304956, 338840, 355782, 381195, 474376, 496440, 508260, 533673, 592970, 609912, 711564, 762390, 889455, 1016520, 1067346, 1185940, 1423128, 1524780, 1778910, 2134692, 2371880, 2668365, 3049560, 3557820, 4269384, 5336730, 7115640, 10673460, 21346920]

約数ペア:

[(1, 21346920), (2, 10673460), (3, 7115640), (4, 5336730), (5, 4269384), (6, 3557820), (7, 3049560), (8, 2668365), (9, 2371880), (10, 2134692), (12, 1778910), (14, 1524780), (15, 1423128), (18, 1185940), (20, 1067346), (21, 1016520), (24, 889455), (28, 762390), (30, 711564), (35, 609912), (36, 592970), (40, 533673), (42, 508260), (43, 496440), (45, 474376), (56, 381195), (60, 355782), (63, 338840), (70, 304956), (72, 296485), (84, 254130), (86, 248220), (90, 237188), (105, 203304), (120, 177891), (126, 169420), (129, 165480), (140, 152478), (168, 127065), (172, 124110), (180, 118594), (197, 108360), (210, 101652), (215, 99288), (252, 84710), (258, 82740), (280, 76239), (301, 70920), (315, 67768), (344, 62055), (360, 59297), (387, 55160), (394, 54180), (420, 50826), (430, 49644), (504, 42355), (516, 41370), (591, 36120), (602, 35460), (630, 33884), (645, 33096), (774, 27580), (788, 27090), (840, 25413), (860, 24822), (903, 23640), (985, 21672), (1032, 20685), (1182, 18060), (1204, 17730), (1260, 16942), (1290, 16548), (1379, 15480), (1505, 14184), (1548, 13790), (1576, 13545), (1720, 12411), (1773, 12040), (1806, 11820), (1935, 11032), (1970, 10836), (2364, 9030), (2408, 8865), (2520, 8471), (2580, 8274), (2709, 7880), (2758, 7740), (2955, 7224), (3010, 7092), (3096, 6895), (3546, 6020), (3612, 5910), (3870, 5516), (3940, 5418), (4137, 5160), (4515, 4728)]