21022660

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{28409}}^1$

素因数の和:28455

約数の個数: 24

約数和(自身を含む): 45342360

約数和(自身を除く): 24319700

約数列:

[1, 2, 4, 5, 10, 20, 37, 74, 148, 185, 370, 740, 28409, 56818, 113636, 142045, 284090, 568180, 1051133, 2102266, 4204532, 5255665, 10511330, 21022660]

約数ペア:

[(1, 21022660), (2, 10511330), (4, 5255665), (5, 4204532), (10, 2102266), (20, 1051133), (37, 568180), (74, 284090), (148, 142045), (185, 113636), (370, 56818), (740, 28409)]