20918718

素因数分解:

$2^1\times 3^2\times {\mathrm{457}}^1\times {\mathrm{2543}}^1$

素因数の和:3008

約数の個数: 24

約数和(自身を含む): 45440928

約数和(自身を除く): 24522210

約数列:

[1, 2, 3, 6, 9, 18, 457, 914, 1371, 2543, 2742, 4113, 5086, 7629, 8226, 15258, 22887, 45774, 1162151, 2324302, 3486453, 6972906, 10459359, 20918718]

約数ペア:

[(1, 20918718), (2, 10459359), (3, 6972906), (6, 3486453), (9, 2324302), (18, 1162151), (457, 45774), (914, 22887), (1371, 15258), (2543, 8226), (2742, 7629), (4113, 5086)]