21483750

素因数分解:

$2^1\times 3^1\times 5^4\times {\mathrm{17}}^1\times {\mathrm{337}}^1$

素因数の和:379

約数の個数: 80

約数和(自身を含む): 57019248

約数和(自身を除く): 35535498

約数列:

[1, 2, 3, 5, 6, 10, 15, 17, 25, 30, 34, 50, 51, 75, 85, 102, 125, 150, 170, 250, 255, 337, 375, 425, 510, 625, 674, 750, 850, 1011, 1250, 1275, 1685, 1875, 2022, 2125, 2550, 3370, 3750, 4250, 5055, 5729, 6375, 8425, 10110, 10625, 11458, 12750, 16850, 17187, 21250, 25275, 28645, 31875, 34374, 42125, 50550, 57290, 63750, 84250, 85935, 126375, 143225, 171870, 210625, 252750, 286450, 421250, 429675, 631875, 716125, 859350, 1263750, 1432250, 2148375, 3580625, 4296750, 7161250, 10741875, 21483750]

約数ペア:

[(1, 21483750), (2, 10741875), (3, 7161250), (5, 4296750), (6, 3580625), (10, 2148375), (15, 1432250), (17, 1263750), (25, 859350), (30, 716125), (34, 631875), (50, 429675), (51, 421250), (75, 286450), (85, 252750), (102, 210625), (125, 171870), (150, 143225), (170, 126375), (250, 85935), (255, 84250), (337, 63750), (375, 57290), (425, 50550), (510, 42125), (625, 34374), (674, 31875), (750, 28645), (850, 25275), (1011, 21250), (1250, 17187), (1275, 16850), (1685, 12750), (1875, 11458), (2022, 10625), (2125, 10110), (2550, 8425), (3370, 6375), (3750, 5729), (4250, 5055)]