520087281

素因数分解:

$3^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{10973}}^1$

素因数の和:11081

約数の個数: 32

約数和(自身を含む): 827351808

約数和(自身を除く): 307264527

約数列:

[1, 3, 7, 21, 37, 61, 111, 183, 259, 427, 777, 1281, 2257, 6771, 10973, 15799, 32919, 47397, 76811, 230433, 406001, 669353, 1218003, 2008059, 2842007, 4685471, 8526021, 14056413, 24766061, 74298183, 173362427, 520087281]

約数ペア:

[(1, 520087281), (3, 173362427), (7, 74298183), (21, 24766061), (37, 14056413), (61, 8526021), (111, 4685471), (183, 2842007), (259, 2008059), (427, 1218003), (777, 669353), (1281, 406001), (2257, 230433), (6771, 76811), (10973, 47397), (15799, 32919)]