18888921831

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{1087}}^1\times {\mathrm{445567}}^1$

素因数の和:446670

約数の個数: 16

約数和(自身を含む): 27147567104

約数和(自身を除く): 8258645273

約数列:

[1, 3, 13, 39, 1087, 3261, 14131, 42393, 445567, 1336701, 5792371, 17377113, 484331329, 1452993987, 6296307277, 18888921831]

約数ペア:

[(1, 18888921831), (3, 6296307277), (13, 1452993987), (39, 484331329), (1087, 17377113), (3261, 5792371), (14131, 1336701), (42393, 445567)]