21400326

素因数分解:

$2^1\times 3^2\times {\mathrm{43}}^2\times {\mathrm{643}}^1$

素因数の和:737

約数の個数: 36

約数和(自身を含む): 47544588

約数和(自身を除く): 26144262

約数列:

[1, 2, 3, 6, 9, 18, 43, 86, 129, 258, 387, 643, 774, 1286, 1849, 1929, 3698, 3858, 5547, 5787, 11094, 11574, 16641, 27649, 33282, 55298, 82947, 165894, 248841, 497682, 1188907, 2377814, 3566721, 7133442, 10700163, 21400326]

約数ペア:

[(1, 21400326), (2, 10700163), (3, 7133442), (6, 3566721), (9, 2377814), (18, 1188907), (43, 497682), (86, 248841), (129, 165894), (258, 82947), (387, 55298), (643, 33282), (774, 27649), (1286, 16641), (1849, 11574), (1929, 11094), (3698, 5787), (3858, 5547)]