16978851

素因数分解:

$3^2\times {\mathrm{43}}^1\times {\mathrm{73}}^1\times {\mathrm{601}}^1$

素因数の和:723

約数の個数: 24

約数和(自身を含む): 25481456

約数和(自身を除く): 8502605

約数列:

[1, 3, 9, 43, 73, 129, 219, 387, 601, 657, 1803, 3139, 5409, 9417, 25843, 28251, 43873, 77529, 131619, 232587, 394857, 1886539, 5659617, 16978851]

約数ペア:

[(1, 16978851), (3, 5659617), (9, 1886539), (43, 394857), (73, 232587), (129, 131619), (219, 77529), (387, 43873), (601, 28251), (657, 25843), (1803, 9417), (3139, 5409)]