20994010

素因数分解:

$2^1\times 5^1\times {\mathrm{431}}^1\times {\mathrm{4871}}^1$

素因数の和:5309

約数の個数: 16

約数和(自身を含む): 37884672

約数和(自身を除く): 16890662

約数列:

[1, 2, 5, 10, 431, 862, 2155, 4310, 4871, 9742, 24355, 48710, 2099401, 4198802, 10497005, 20994010]

約数ペア:

[(1, 20994010), (2, 10497005), (5, 4198802), (10, 2099401), (431, 48710), (862, 24355), (2155, 9742), (4310, 4871)]