20518993

素因数分解:

${\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{3167}}^1$

素因数の和:3228

約数の個数: 16

約数和(自身を含む): 24330240

約数和(自身を除く): 3811247

約数列:

[1, 11, 19, 31, 209, 341, 589, 3167, 6479, 34837, 60173, 98177, 661903, 1079947, 1865363, 20518993]

約数ペア:

[(1, 20518993), (11, 1865363), (19, 1079947), (31, 661903), (209, 98177), (341, 60173), (589, 34837), (3167, 6479)]