16905028

素因数分解:

$2^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{109}}^1\times {\mathrm{191}}^1$

素因数の和:340

約数の個数: 48

約数和(自身を含む): 35481600

約数和(自身を除く): 18576572

約数列:

[1, 2, 4, 7, 14, 28, 29, 58, 109, 116, 191, 203, 218, 382, 406, 436, 763, 764, 812, 1337, 1526, 2674, 3052, 3161, 5348, 5539, 6322, 11078, 12644, 20819, 22127, 22156, 38773, 41638, 44254, 77546, 83276, 88508, 145733, 155092, 291466, 582932, 603751, 1207502, 2415004, 4226257, 8452514, 16905028]

約数ペア:

[(1, 16905028), (2, 8452514), (4, 4226257), (7, 2415004), (14, 1207502), (28, 603751), (29, 582932), (58, 291466), (109, 155092), (116, 145733), (191, 88508), (203, 83276), (218, 77546), (382, 44254), (406, 41638), (436, 38773), (763, 22156), (764, 22127), (812, 20819), (1337, 12644), (1526, 11078), (2674, 6322), (3052, 5539), (3161, 5348)]