21409100

素因数分解:

$2^2\times 5^2\times {\mathrm{214091}}^1$

素因数の和:214105

約数の個数: 18

約数和(自身を含む): 46457964

約数和(自身を除く): 25048864

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 214091, 428182, 856364, 1070455, 2140910, 4281820, 5352275, 10704550, 21409100]

約数ペア:

[(1, 21409100), (2, 10704550), (4, 5352275), (5, 4281820), (10, 2140910), (20, 1070455), (25, 856364), (50, 428182), (100, 214091)]