18882981

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{251}}^1\times {\mathrm{643}}^1$

素因数の和:913

約数の個数: 24

約数和(自身を含む): 29536416

約数和(自身を除く): 10653435

約数列:

[1, 3, 9, 13, 39, 117, 251, 643, 753, 1929, 2259, 3263, 5787, 8359, 9789, 25077, 29367, 75231, 161393, 484179, 1452537, 2098109, 6294327, 18882981]

約数ペア:

[(1, 18882981), (3, 6294327), (9, 2098109), (13, 1452537), (39, 484179), (117, 161393), (251, 75231), (643, 29367), (753, 25077), (1929, 9789), (2259, 8359), (3263, 5787)]