18790965627

素因数分解:

$3^1\times 7^1\times {\mathrm{1303}}^1\times {\mathrm{686729}}^1$

素因数の和:688042

約数の個数: 16

約数和(自身を含む): 28655869440

約数和(自身を除く): 9864903813

約数列:

[1, 3, 7, 21, 1303, 3909, 9121, 27363, 686729, 2060187, 4807103, 14421309, 894807887, 2684423661, 6263655209, 18790965627]

約数ペア:

[(1, 18790965627), (3, 6263655209), (7, 2684423661), (21, 894807887), (1303, 14421309), (3909, 4807103), (9121, 2060187), (27363, 686729)]