551551

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1$

素因数の和:79

約数の個数: 32

約数和(自身を含む): 806400

約数和(自身を除く): 254849

約数列:

[1, 7, 11, 13, 19, 29, 77, 91, 133, 143, 203, 209, 247, 319, 377, 551, 1001, 1463, 1729, 2233, 2639, 2717, 3857, 4147, 6061, 7163, 19019, 29029, 42427, 50141, 78793, 551551]

約数ペア:

[(1, 551551), (7, 78793), (11, 50141), (13, 42427), (19, 29029), (29, 19019), (77, 7163), (91, 6061), (133, 4147), (143, 3857), (203, 2717), (209, 2639), (247, 2233), (319, 1729), (377, 1463), (551, 1001)]