19987662

素因数分解:

$2^1\times 3^1\times {\mathrm{641}}^1\times {\mathrm{5197}}^1$

素因数の和:5843

約数の個数: 16

約数和(自身を含む): 40045392

約数和(自身を除く): 20057730

約数列:

[1, 2, 3, 6, 641, 1282, 1923, 3846, 5197, 10394, 15591, 31182, 3331277, 6662554, 9993831, 19987662]

約数ペア:

[(1, 19987662), (2, 9993831), (3, 6662554), (6, 3331277), (641, 31182), (1282, 15591), (1923, 10394), (3846, 5197)]