20822081

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{3331}}^1$

素因数の和:3404

約数の個数: 16

約数和(自身を含む): 25589760

約数和(自身を除く): 4767679

約数列:

[1, 7, 19, 47, 133, 329, 893, 3331, 6251, 23317, 63289, 156557, 443023, 1095899, 2974583, 20822081]

約数ペア:

[(1, 20822081), (7, 2974583), (19, 1095899), (47, 443023), (133, 156557), (329, 63289), (893, 23317), (3331, 6251)]