21382620

素因数分解:

$2^2\times 3^1\times 5^1\times 7^3\times {\mathrm{1039}}^1$

素因数の和:1072

約数の個数: 96

約数和(自身を含む): 69888000

約数和(自身を除く): 48505380

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 49, 60, 70, 84, 98, 105, 140, 147, 196, 210, 245, 294, 343, 420, 490, 588, 686, 735, 980, 1029, 1039, 1372, 1470, 1715, 2058, 2078, 2940, 3117, 3430, 4116, 4156, 5145, 5195, 6234, 6860, 7273, 10290, 10390, 12468, 14546, 15585, 20580, 20780, 21819, 29092, 31170, 36365, 43638, 50911, 62340, 72730, 87276, 101822, 109095, 145460, 152733, 203644, 218190, 254555, 305466, 356377, 436380, 509110, 610932, 712754, 763665, 1018220, 1069131, 1425508, 1527330, 1781885, 2138262, 3054660, 3563770, 4276524, 5345655, 7127540, 10691310, 21382620]

約数ペア:

[(1, 21382620), (2, 10691310), (3, 7127540), (4, 5345655), (5, 4276524), (6, 3563770), (7, 3054660), (10, 2138262), (12, 1781885), (14, 1527330), (15, 1425508), (20, 1069131), (21, 1018220), (28, 763665), (30, 712754), (35, 610932), (42, 509110), (49, 436380), (60, 356377), (70, 305466), (84, 254555), (98, 218190), (105, 203644), (140, 152733), (147, 145460), (196, 109095), (210, 101822), (245, 87276), (294, 72730), (343, 62340), (420, 50911), (490, 43638), (588, 36365), (686, 31170), (735, 29092), (980, 21819), (1029, 20780), (1039, 20580), (1372, 15585), (1470, 14546), (1715, 12468), (2058, 10390), (2078, 10290), (2940, 7273), (3117, 6860), (3430, 6234), (4116, 5195), (4156, 5145)]