18790857

素因数分解:

$3^2\times {\mathrm{37}}^1\times {\mathrm{73}}^1\times {\mathrm{773}}^1$

素因数の和:889

約数の個数: 24

約数和(自身を含む): 28294344

約数和(自身を除く): 9503487

約数列:

[1, 3, 9, 37, 73, 111, 219, 333, 657, 773, 2319, 2701, 6957, 8103, 24309, 28601, 56429, 85803, 169287, 257409, 507861, 2087873, 6263619, 18790857]

約数ペア:

[(1, 18790857), (3, 6263619), (9, 2087873), (37, 507861), (73, 257409), (111, 169287), (219, 85803), (333, 56429), (657, 28601), (773, 24309), (2319, 8103), (2701, 6957)]