19120131

素因数分解:

$3^4\times {\mathrm{137}}^1\times {\mathrm{1723}}^1$

素因数の和:1872

約数の個数: 20

約数和(自身を含む): 28787352

約数和(自身を除く): 9667221

約数列:

[1, 3, 9, 27, 81, 137, 411, 1233, 1723, 3699, 5169, 11097, 15507, 46521, 139563, 236051, 708153, 2124459, 6373377, 19120131]

約数ペア:

[(1, 19120131), (3, 6373377), (9, 2124459), (27, 708153), (81, 236051), (137, 139563), (411, 46521), (1233, 15507), (1723, 11097), (3699, 5169)]