18673911

素因数分解:

$3^2\times {\mathrm{43}}^1\times {\mathrm{73}}^1\times {\mathrm{661}}^1$

素因数の和:783

約数の個数: 24

約数和(自身を含む): 28021136

約数和(自身を除く): 9347225

約数列:

[1, 3, 9, 43, 73, 129, 219, 387, 657, 661, 1983, 3139, 5949, 9417, 28251, 28423, 48253, 85269, 144759, 255807, 434277, 2074879, 6224637, 18673911]

約数ペア:

[(1, 18673911), (3, 6224637), (9, 2074879), (43, 434277), (73, 255807), (129, 144759), (219, 85269), (387, 48253), (657, 28423), (661, 28251), (1983, 9417), (3139, 5949)]