21995840

素因数分解:

$2^6\times 5^1\times {\mathrm{68737}}^1$

素因数の和:68754

約数の個数: 28

約数和(自身を含む): 52378356

約数和(自身を除く): 30382516

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 160, 320, 68737, 137474, 274948, 343685, 549896, 687370, 1099792, 1374740, 2199584, 2749480, 4399168, 5498960, 10997920, 21995840]

約数ペア:

[(1, 21995840), (2, 10997920), (4, 5498960), (5, 4399168), (8, 2749480), (10, 2199584), (16, 1374740), (20, 1099792), (32, 687370), (40, 549896), (64, 343685), (80, 274948), (160, 137474), (320, 68737)]