21250700

素因数分解:

$2^2\times 5^2\times {\mathrm{212507}}^1$

素因数の和:212521

約数の個数: 18

約数和(自身を含む): 46114236

約数和(自身を除く): 24863536

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 212507, 425014, 850028, 1062535, 2125070, 4250140, 5312675, 10625350, 21250700]

約数ペア:

[(1, 21250700), (2, 10625350), (4, 5312675), (5, 4250140), (10, 2125070), (20, 1062535), (25, 850028), (50, 425014), (100, 212507)]