681566347

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{103}}^1\times {\mathrm{4523}}^1$

素因数の和:4663

約数の個数: 32

約数和(自身を含む): 903352320

約数和(自身を除く): 221785973

約数列:

[1, 7, 11, 19, 77, 103, 133, 209, 721, 1133, 1463, 1957, 4523, 7931, 13699, 21527, 31661, 49753, 85937, 150689, 348271, 465869, 601559, 945307, 3261083, 5124559, 6617149, 8851511, 35871913, 61960577, 97366621, 681566347]

約数ペア:

[(1, 681566347), (7, 97366621), (11, 61960577), (19, 35871913), (77, 8851511), (103, 6617149), (133, 5124559), (209, 3261083), (721, 945307), (1133, 601559), (1463, 465869), (1957, 348271), (4523, 150689), (7931, 85937), (13699, 49753), (21527, 31661)]