18395019

素因数分解:

$3^4\times {\mathrm{29}}^1\times {\mathrm{41}}^1\times {\mathrm{191}}^1$

素因数の和:273

約数の個数: 40

約数和(自身を含む): 29272320

約数和(自身を除く): 10877301

約数列:

[1, 3, 9, 27, 29, 41, 81, 87, 123, 191, 261, 369, 573, 783, 1107, 1189, 1719, 2349, 3321, 3567, 5157, 5539, 7831, 10701, 15471, 16617, 23493, 32103, 49851, 70479, 96309, 149553, 211437, 227099, 448659, 634311, 681297, 2043891, 6131673, 18395019]

約数ペア:

[(1, 18395019), (3, 6131673), (9, 2043891), (27, 681297), (29, 634311), (41, 448659), (81, 227099), (87, 211437), (123, 149553), (191, 96309), (261, 70479), (369, 49851), (573, 32103), (783, 23493), (1107, 16617), (1189, 15471), (1719, 10701), (2349, 7831), (3321, 5539), (3567, 5157)]