19947699

素因数分解:

$3^2\times {\mathrm{37}}^2\times {\mathrm{1619}}^1$

素因数の和:1699

約数の個数: 18

約数和(自身を含む): 29631420

約数和(自身を除く): 9683721

約数列:

[1, 3, 9, 37, 111, 333, 1369, 1619, 4107, 4857, 12321, 14571, 59903, 179709, 539127, 2216411, 6649233, 19947699]

約数ペア:

[(1, 19947699), (3, 6649233), (9, 2216411), (37, 539127), (111, 179709), (333, 59903), (1369, 14571), (1619, 12321), (4107, 4857)]