21073100

素因数分解:

$2^2\times 5^2\times {\mathrm{210731}}^1$

素因数の和:210745

約数の個数: 18

約数和(自身を含む): 45728844

約数和(自身を除く): 24655744

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 210731, 421462, 842924, 1053655, 2107310, 4214620, 5268275, 10536550, 21073100]

約数ペア:

[(1, 21073100), (2, 10536550), (4, 5268275), (5, 4214620), (10, 2107310), (20, 1053655), (25, 842924), (50, 421462), (100, 210731)]