21022250

素因数分解:

$2^1\times 5^3\times {\mathrm{84089}}^1$

素因数の和:84106

約数の個数: 16

約数和(自身を含む): 39354120

約数和(自身を除く): 18331870

約数列:

[1, 2, 5, 10, 25, 50, 125, 250, 84089, 168178, 420445, 840890, 2102225, 4204450, 10511125, 21022250]

約数ペア:

[(1, 21022250), (2, 10511125), (5, 4204450), (10, 2102225), (25, 840890), (50, 420445), (125, 168178), (250, 84089)]