18870309

素因数分解:

$3^2\times {\mathrm{71}}^1\times {\mathrm{29531}}^1$

素因数の和:29608

約数の個数: 12

約数和(自身を含む): 27641952

約数和(自身を除く): 8771643

約数列:

[1, 3, 9, 71, 213, 639, 29531, 88593, 265779, 2096701, 6290103, 18870309]

約数ペア:

[(1, 18870309), (3, 6290103), (9, 2096701), (71, 265779), (213, 88593), (639, 29531)]