21105100

素因数分解:

$2^2\times 5^2\times {\mathrm{211051}}^1$

素因数の和:211065

約数の個数: 18

約数和(自身を含む): 45798284

約数和(自身を除く): 24693184

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 211051, 422102, 844204, 1055255, 2110510, 4221020, 5276275, 10552550, 21105100]

約数ペア:

[(1, 21105100), (2, 10552550), (4, 5276275), (5, 4221020), (10, 2110510), (20, 1055255), (25, 844204), (50, 422102), (100, 211051)]