21420200

素因数分解:

$2^3\times 5^2\times {\mathrm{107101}}^1$

素因数の和:107117

約数の個数: 24

約数和(自身を含む): 49802430

約数和(自身を除く): 28382230

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 200, 107101, 214202, 428404, 535505, 856808, 1071010, 2142020, 2677525, 4284040, 5355050, 10710100, 21420200]

約数ペア:

[(1, 21420200), (2, 10710100), (4, 5355050), (5, 4284040), (8, 2677525), (10, 2142020), (20, 1071010), (25, 856808), (40, 535505), (50, 428404), (100, 214202), (200, 107101)]