28500003

素因数分解:

$3^2\times 7^1\times {\mathrm{73}}^1\times {\mathrm{6197}}^1$

素因数の和:6283

約数の個数: 24

約数和(自身を含む): 47699808

約数和(自身を除く): 19199805

約数列:

[1, 3, 7, 9, 21, 63, 73, 219, 511, 657, 1533, 4599, 6197, 18591, 43379, 55773, 130137, 390411, 452381, 1357143, 3166667, 4071429, 9500001, 28500003]

約数ペア:

[(1, 28500003), (3, 9500001), (7, 4071429), (9, 3166667), (21, 1357143), (63, 452381), (73, 390411), (219, 130137), (511, 55773), (657, 43379), (1533, 18591), (4599, 6197)]