21643860

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{1777}}^1$

素因数の和:1825

約数の個数: 96

約数和(自身を含む): 71688960

約数和(自身を除く): 50045100

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 29, 30, 35, 42, 58, 60, 70, 84, 87, 105, 116, 140, 145, 174, 203, 210, 290, 348, 406, 420, 435, 580, 609, 812, 870, 1015, 1218, 1740, 1777, 2030, 2436, 3045, 3554, 4060, 5331, 6090, 7108, 8885, 10662, 12180, 12439, 17770, 21324, 24878, 26655, 35540, 37317, 49756, 51533, 53310, 62195, 74634, 103066, 106620, 124390, 149268, 154599, 186585, 206132, 248780, 257665, 309198, 360731, 373170, 515330, 618396, 721462, 746340, 772995, 1030660, 1082193, 1442924, 1545990, 1803655, 2164386, 3091980, 3607310, 4328772, 5410965, 7214620, 10821930, 21643860]

約数ペア:

[(1, 21643860), (2, 10821930), (3, 7214620), (4, 5410965), (5, 4328772), (6, 3607310), (7, 3091980), (10, 2164386), (12, 1803655), (14, 1545990), (15, 1442924), (20, 1082193), (21, 1030660), (28, 772995), (29, 746340), (30, 721462), (35, 618396), (42, 515330), (58, 373170), (60, 360731), (70, 309198), (84, 257665), (87, 248780), (105, 206132), (116, 186585), (140, 154599), (145, 149268), (174, 124390), (203, 106620), (210, 103066), (290, 74634), (348, 62195), (406, 53310), (420, 51533), (435, 49756), (580, 37317), (609, 35540), (812, 26655), (870, 24878), (1015, 21324), (1218, 17770), (1740, 12439), (1777, 12180), (2030, 10662), (2436, 8885), (3045, 7108), (3554, 6090), (4060, 5331)]