13509513

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{199}}^1\times {\mathrm{397}}^1$

素因数の和:621

約数の個数: 24

約数和(自身を含む): 20696000

約数和(自身を除く): 7186487

約数列:

[1, 3, 9, 19, 57, 171, 199, 397, 597, 1191, 1791, 3573, 3781, 7543, 11343, 22629, 34029, 67887, 79003, 237009, 711027, 1501057, 4503171, 13509513]

約数ペア:

[(1, 13509513), (3, 4503171), (9, 1501057), (19, 711027), (57, 237009), (171, 79003), (199, 67887), (397, 34029), (597, 22629), (1191, 11343), (1791, 7543), (3573, 3781)]