20212100

素因数分解:

$2^2\times 5^2\times {\mathrm{202121}}^1$

素因数の和:202135

約数の個数: 18

約数和(自身を含む): 43860474

約数和(自身を除く): 23648374

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 202121, 404242, 808484, 1010605, 2021210, 4042420, 5053025, 10106050, 20212100]

約数ペア:

[(1, 20212100), (2, 10106050), (4, 5053025), (5, 4042420), (10, 2021210), (20, 1010605), (25, 808484), (50, 404242), (100, 202121)]