20154211

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{5569}}^1$

素因数の和:5634

約数の個数: 16

約数和(自身を含む): 25666560

約数和(自身を除く): 5512349

約数列:

[1, 7, 11, 47, 77, 329, 517, 3619, 5569, 38983, 61259, 261743, 428813, 1832201, 2879173, 20154211]

約数ペア:

[(1, 20154211), (7, 2879173), (11, 1832201), (47, 428813), (77, 261743), (329, 61259), (517, 38983), (3619, 5569)]