2100068900

素因数分解:

$2^2\times 5^2\times {\mathrm{21000689}}^1$

素因数の和:21000703

約数の個数: 18

約数和(自身を含む): 4557149730

約数和(自身を除く): 2457080830

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 21000689, 42001378, 84002756, 105003445, 210006890, 420013780, 525017225, 1050034450, 2100068900]

約数ペア:

[(1, 2100068900), (2, 1050034450), (4, 525017225), (5, 420013780), (10, 210006890), (20, 105003445), (25, 84002756), (50, 42001378), (100, 21000689)]