21802100

素因数分解:

$2^2\times 5^2\times {\mathrm{218021}}^1$

素因数の和:218035

約数の個数: 18

約数和(自身を含む): 47310774

約数和(自身を除く): 25508674

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 218021, 436042, 872084, 1090105, 2180210, 4360420, 5450525, 10901050, 21802100]

約数ペア:

[(1, 21802100), (2, 10901050), (4, 5450525), (5, 4360420), (10, 2180210), (20, 1090105), (25, 872084), (50, 436042), (100, 218021)]