18868383

素因数分解:

$3^4\times {\mathrm{73}}^1\times {\mathrm{3191}}^1$

素因数の和:3276

約数の個数: 20

約数和(自身を含む): 28581168

約数和(自身を除く): 9712785

約数列:

[1, 3, 9, 27, 73, 81, 219, 657, 1971, 3191, 5913, 9573, 28719, 86157, 232943, 258471, 698829, 2096487, 6289461, 18868383]

約数ペア:

[(1, 18868383), (3, 6289461), (9, 2096487), (27, 698829), (73, 258471), (81, 232943), (219, 86157), (657, 28719), (1971, 9573), (3191, 5913)]