21992730

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{1487}}^1$

素因数の和:1543

約数の個数: 64

約数和(自身を含む): 57853440

約数和(自身を除く): 35860710

約数列:

[1, 2, 3, 5, 6, 10, 15, 17, 29, 30, 34, 51, 58, 85, 87, 102, 145, 170, 174, 255, 290, 435, 493, 510, 870, 986, 1479, 1487, 2465, 2958, 2974, 4461, 4930, 7395, 7435, 8922, 14790, 14870, 22305, 25279, 43123, 44610, 50558, 75837, 86246, 126395, 129369, 151674, 215615, 252790, 258738, 379185, 431230, 646845, 733091, 758370, 1293690, 1466182, 2199273, 3665455, 4398546, 7330910, 10996365, 21992730]

約数ペア:

[(1, 21992730), (2, 10996365), (3, 7330910), (5, 4398546), (6, 3665455), (10, 2199273), (15, 1466182), (17, 1293690), (29, 758370), (30, 733091), (34, 646845), (51, 431230), (58, 379185), (85, 258738), (87, 252790), (102, 215615), (145, 151674), (170, 129369), (174, 126395), (255, 86246), (290, 75837), (435, 50558), (493, 44610), (510, 43123), (870, 25279), (986, 22305), (1479, 14870), (1487, 14790), (2465, 8922), (2958, 7435), (2974, 7395), (4461, 4930)]