21595140

素因数分解:

$2^2\times 3^3\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{197}}^1$

素因数の和:251

約数の個数: 192

約数和(自身を含む): 79833600

約数和(自身を除く): 58238460

約数列:

[1, 2, 3, 4, 5, 6, 7, 9, 10, 12, 14, 15, 18, 20, 21, 27, 28, 29, 30, 35, 36, 42, 45, 54, 58, 60, 63, 70, 84, 87, 90, 105, 108, 116, 126, 135, 140, 145, 174, 180, 189, 197, 203, 210, 252, 261, 270, 290, 315, 348, 378, 394, 406, 420, 435, 522, 540, 580, 591, 609, 630, 756, 783, 788, 812, 870, 945, 985, 1015, 1044, 1182, 1218, 1260, 1305, 1379, 1566, 1740, 1773, 1827, 1890, 1970, 2030, 2364, 2436, 2610, 2758, 2955, 3045, 3132, 3546, 3654, 3780, 3915, 3940, 4060, 4137, 5220, 5319, 5481, 5516, 5713, 5910, 6090, 6895, 7092, 7308, 7830, 8274, 8865, 9135, 10638, 10962, 11426, 11820, 12180, 12411, 13790, 15660, 16548, 17139, 17730, 18270, 20685, 21276, 21924, 22852, 24822, 26595, 27405, 27580, 28565, 34278, 35460, 36540, 37233, 39991, 41370, 49644, 51417, 53190, 54810, 57130, 62055, 68556, 74466, 79982, 82740, 85695, 102834, 106380, 109620, 114260, 119973, 124110, 148932, 154251, 159964, 171390, 186165, 199955, 205668, 239946, 248220, 257085, 308502, 342780, 359919, 372330, 399910, 479892, 514170, 599865, 617004, 719838, 744660, 771255, 799820, 1028340, 1079757, 1199730, 1439676, 1542510, 1799595, 2159514, 2399460, 3085020, 3599190, 4319028, 5398785, 7198380, 10797570, 21595140]

約数ペア:

[(1, 21595140), (2, 10797570), (3, 7198380), (4, 5398785), (5, 4319028), (6, 3599190), (7, 3085020), (9, 2399460), (10, 2159514), (12, 1799595), (14, 1542510), (15, 1439676), (18, 1199730), (20, 1079757), (21, 1028340), (27, 799820), (28, 771255), (29, 744660), (30, 719838), (35, 617004), (36, 599865), (42, 514170), (45, 479892), (54, 399910), (58, 372330), (60, 359919), (63, 342780), (70, 308502), (84, 257085), (87, 248220), (90, 239946), (105, 205668), (108, 199955), (116, 186165), (126, 171390), (135, 159964), (140, 154251), (145, 148932), (174, 124110), (180, 119973), (189, 114260), (197, 109620), (203, 106380), (210, 102834), (252, 85695), (261, 82740), (270, 79982), (290, 74466), (315, 68556), (348, 62055), (378, 57130), (394, 54810), (406, 53190), (420, 51417), (435, 49644), (522, 41370), (540, 39991), (580, 37233), (591, 36540), (609, 35460), (630, 34278), (756, 28565), (783, 27580), (788, 27405), (812, 26595), (870, 24822), (945, 22852), (985, 21924), (1015, 21276), (1044, 20685), (1182, 18270), (1218, 17730), (1260, 17139), (1305, 16548), (1379, 15660), (1566, 13790), (1740, 12411), (1773, 12180), (1827, 11820), (1890, 11426), (1970, 10962), (2030, 10638), (2364, 9135), (2436, 8865), (2610, 8274), (2758, 7830), (2955, 7308), (3045, 7092), (3132, 6895), (3546, 6090), (3654, 5910), (3780, 5713), (3915, 5516), (3940, 5481), (4060, 5319), (4137, 5220)]