18746397

素因数分解:

$3^4\times {\mathrm{199}}^1\times {\mathrm{1163}}^1$

素因数の和:1374

約数の個数: 20

約数和(自身を含む): 28168800

約数和(自身を除く): 9422403

約数列:

[1, 3, 9, 27, 81, 199, 597, 1163, 1791, 3489, 5373, 10467, 16119, 31401, 94203, 231437, 694311, 2082933, 6248799, 18746397]

約数ペア:

[(1, 18746397), (3, 6248799), (9, 2082933), (27, 694311), (81, 231437), (199, 94203), (597, 31401), (1163, 16119), (1791, 10467), (3489, 5373)]