2100085100

素因数分解:

$2^2\times 5^2\times {\mathrm{21000851}}^1$

素因数の和:21000865

約数の個数: 18

約数和(自身を含む): 4557184884

約数和(自身を除く): 2457099784

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 21000851, 42001702, 84003404, 105004255, 210008510, 420017020, 525021275, 1050042550, 2100085100]

約数ペア:

[(1, 2100085100), (2, 1050042550), (4, 525021275), (5, 420017020), (10, 210008510), (20, 105004255), (25, 84003404), (50, 42001702), (100, 21000851)]