19879111

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{137}}^1\times {\mathrm{1091}}^1$

素因数の和:1254

約数の個数: 16

約数和(自身を含む): 24111360

約数和(自身を除く): 4232249

約数列:

[1, 7, 19, 133, 137, 959, 1091, 2603, 7637, 18221, 20729, 145103, 149467, 1046269, 2839873, 19879111]

約数ペア:

[(1, 19879111), (7, 2839873), (19, 1046269), (133, 149467), (137, 145103), (959, 20729), (1091, 18221), (2603, 7637)]