21284500

素因数分解:

$2^2\times 5^3\times {\mathrm{42569}}^1$

素因数の和:42588

約数の個数: 24

約数和(自身を含む): 46486440

約数和(自身を除く): 25201940

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 125, 250, 500, 42569, 85138, 170276, 212845, 425690, 851380, 1064225, 2128450, 4256900, 5321125, 10642250, 21284500]

約数ペア:

[(1, 21284500), (2, 10642250), (4, 5321125), (5, 4256900), (10, 2128450), (20, 1064225), (25, 851380), (50, 425690), (100, 212845), (125, 170276), (250, 85138), (500, 42569)]