21155250

素因数分解:

$2^1\times 3^1\times 5^3\times {\mathrm{67}}^1\times {\mathrm{421}}^1$

素因数の和:508

約数の個数: 64

約数和(自身を含む): 53718912

約数和(自身を除く): 32563662

約数列:

[1, 2, 3, 5, 6, 10, 15, 25, 30, 50, 67, 75, 125, 134, 150, 201, 250, 335, 375, 402, 421, 670, 750, 842, 1005, 1263, 1675, 2010, 2105, 2526, 3350, 4210, 5025, 6315, 8375, 10050, 10525, 12630, 16750, 21050, 25125, 28207, 31575, 50250, 52625, 56414, 63150, 84621, 105250, 141035, 157875, 169242, 282070, 315750, 423105, 705175, 846210, 1410350, 2115525, 3525875, 4231050, 7051750, 10577625, 21155250]

約数ペア:

[(1, 21155250), (2, 10577625), (3, 7051750), (5, 4231050), (6, 3525875), (10, 2115525), (15, 1410350), (25, 846210), (30, 705175), (50, 423105), (67, 315750), (75, 282070), (125, 169242), (134, 157875), (150, 141035), (201, 105250), (250, 84621), (335, 63150), (375, 56414), (402, 52625), (421, 50250), (670, 31575), (750, 28207), (842, 25125), (1005, 21050), (1263, 16750), (1675, 12630), (2010, 10525), (2105, 10050), (2526, 8375), (3350, 6315), (4210, 5025)]