19980962

素因数分解:

$2^1\times {\mathrm{37}}^1\times {\mathrm{71}}^1\times {\mathrm{3803}}^1$

素因数の和:3913

約数の個数: 16

約数和(自身を含む): 31223232

約数和(自身を除く): 11242270

約数列:

[1, 2, 37, 71, 74, 142, 2627, 3803, 5254, 7606, 140711, 270013, 281422, 540026, 9990481, 19980962]

約数ペア:

[(1, 19980962), (2, 9990481), (37, 540026), (71, 281422), (74, 270013), (142, 140711), (2627, 7606), (3803, 5254)]