19376739

素因数分解:

$3^4\times {\mathrm{139}}^1\times {\mathrm{1721}}^1$

素因数の和:1872

約数の個数: 20

約数和(自身を含む): 29170680

約数和(自身を除く): 9793941

約数列:

[1, 3, 9, 27, 81, 139, 417, 1251, 1721, 3753, 5163, 11259, 15489, 46467, 139401, 239219, 717657, 2152971, 6458913, 19376739]

約数ペア:

[(1, 19376739), (3, 6458913), (9, 2152971), (27, 717657), (81, 239219), (139, 139401), (417, 46467), (1251, 15489), (1721, 11259), (3753, 5163)]