19929120138

素因数分解:

$2^1\times 3^2\times {\mathrm{643}}^1\times {\mathrm{1721887}}^1$

素因数の和:1722538

約数の個数: 24

約数和(自身を含む): 43246939008

約数和(自身を除く): 23317818870

約数列:

[1, 2, 3, 6, 9, 18, 643, 1286, 1929, 3858, 5787, 11574, 1721887, 3443774, 5165661, 10331322, 15496983, 30993966, 1107173341, 2214346682, 3321520023, 6643040046, 9964560069, 19929120138]

約数ペア:

[(1, 19929120138), (2, 9964560069), (3, 6643040046), (6, 3321520023), (9, 2214346682), (18, 1107173341), (643, 30993966), (1286, 15496983), (1929, 10331322), (3858, 5165661), (5787, 3443774), (11574, 1721887)]