18810399

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{331}}^1\times {\mathrm{997}}^1$

素因数の和:1350

約数の個数: 16

約数和(自身を含む): 26506880

約数和(自身を除く): 7696481

約数列:

[1, 3, 19, 57, 331, 993, 997, 2991, 6289, 18867, 18943, 56829, 330007, 990021, 6270133, 18810399]

約数ペア:

[(1, 18810399), (3, 6270133), (19, 990021), (57, 330007), (331, 56829), (993, 18943), (997, 18867), (2991, 6289)]