21026800

素因数分解:

$2^4\times 5^2\times {\mathrm{52567}}^1$

素因数の和:52585

約数の個数: 30

約数和(自身を含む): 50517848

約数和(自身を除く): 29491048

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200, 400, 52567, 105134, 210268, 262835, 420536, 525670, 841072, 1051340, 1314175, 2102680, 2628350, 4205360, 5256700, 10513400, 21026800]

約数ペア:

[(1, 21026800), (2, 10513400), (4, 5256700), (5, 4205360), (8, 2628350), (10, 2102680), (16, 1314175), (20, 1051340), (25, 841072), (40, 525670), (50, 420536), (80, 262835), (100, 210268), (200, 105134), (400, 52567)]