19720295567

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{719}}^1\times {\mathrm{206221}}^1$

素因数の和:206966

約数の個数: 16

約数和(自身を含む): 23756774400

約数和(自身を除く): 4036478833

約数列:

[1, 7, 19, 133, 719, 5033, 13661, 95627, 206221, 1443547, 3918199, 27427393, 148272899, 1037910293, 2817185081, 19720295567]

約数ペア:

[(1, 19720295567), (7, 2817185081), (19, 1037910293), (133, 148272899), (719, 27427393), (5033, 3918199), (13661, 1443547), (95627, 206221)]