1261174719

素因数分解:

$3^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{191}}^1\times {\mathrm{7669}}^1$

素因数の和:7911

約数の個数: 32

約数和(自身を含む): 1979228160

約数和(自身を除く): 718053441

約数列:

[1, 3, 7, 21, 41, 123, 191, 287, 573, 861, 1337, 4011, 7669, 7831, 23007, 23493, 53683, 54817, 161049, 164451, 314429, 943287, 1464779, 2201003, 4394337, 6603009, 10253453, 30760359, 60055939, 180167817, 420391573, 1261174719]

約数ペア:

[(1, 1261174719), (3, 420391573), (7, 180167817), (21, 60055939), (41, 30760359), (123, 10253453), (191, 6603009), (287, 4394337), (573, 2201003), (861, 1464779), (1337, 943287), (4011, 314429), (7669, 164451), (7831, 161049), (23007, 54817), (23493, 53683)]