20212821100

素因数分解:

$2^2\times 5^2\times {\mathrm{202128211}}^1$

素因数の和:202128225

約数の個数: 18

約数和(自身を含む): 43861822004

約数和(自身を除く): 23649000904

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 202128211, 404256422, 808512844, 1010641055, 2021282110, 4042564220, 5053205275, 10106410550, 20212821100]

約数ペア:

[(1, 20212821100), (2, 10106410550), (4, 5053205275), (5, 4042564220), (10, 2021282110), (20, 1010641055), (25, 808512844), (50, 404256422), (100, 202128211)]