81174821

素因数分解:

$7^2\times {\mathrm{13}}^1\times {\mathrm{19}}^2\times {\mathrm{353}}^1$

素因数の和:418

約数の個数: 36

約数和(自身を含む): 107629452

約数和(自身を除く): 26454631

約数列:

[1, 7, 13, 19, 49, 91, 133, 247, 353, 361, 637, 931, 1729, 2471, 2527, 4589, 4693, 6707, 12103, 17297, 17689, 32123, 32851, 46949, 87191, 127433, 224861, 229957, 328643, 610337, 892031, 1656629, 4272359, 6244217, 11596403, 81174821]

約数ペア:

[(1, 81174821), (7, 11596403), (13, 6244217), (19, 4272359), (49, 1656629), (91, 892031), (133, 610337), (247, 328643), (353, 229957), (361, 224861), (637, 127433), (931, 87191), (1729, 46949), (2471, 32851), (2527, 32123), (4589, 17689), (4693, 17297), (6707, 12103)]