19877249

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{103}}^1\times {\mathrm{1451}}^1$

素因数の和:1580

約数の個数: 16

約数和(自身を含む): 24161280

約数和(自身を除く): 4284031

約数列:

[1, 7, 19, 103, 133, 721, 1451, 1957, 10157, 13699, 27569, 149453, 192983, 1046171, 2839607, 19877249]

約数ペア:

[(1, 19877249), (7, 2839607), (19, 1046171), (103, 192983), (133, 149453), (721, 27569), (1451, 13699), (1957, 10157)]