20216859

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{30493}}^1$

素因数の和:30526

約数の個数: 16

約数和(自身を含む): 30737952

約数和(自身を除く): 10521093

約数列:

[1, 3, 13, 17, 39, 51, 221, 663, 30493, 91479, 396409, 518381, 1189227, 1555143, 6738953, 20216859]

約数ペア:

[(1, 20216859), (3, 6738953), (13, 1555143), (17, 1189227), (39, 518381), (51, 396409), (221, 91479), (663, 30493)]