21620660

素因数分解:

$2^2\times 5^1\times {\mathrm{29}}^1\times {\mathrm{37277}}^1$

素因数の和:37315

約数の個数: 24

約数和(自身を含む): 46970280

約数和(自身を除く): 25349620

約数列:

[1, 2, 4, 5, 10, 20, 29, 58, 116, 145, 290, 580, 37277, 74554, 149108, 186385, 372770, 745540, 1081033, 2162066, 4324132, 5405165, 10810330, 21620660]

約数ペア:

[(1, 21620660), (2, 10810330), (4, 5405165), (5, 4324132), (10, 2162066), (20, 1081033), (29, 745540), (58, 372770), (116, 186385), (145, 149108), (290, 74554), (580, 37277)]