247705515

素因数分解:

$3^2\times 5^1\times {\mathrm{23}}^1\times {\mathrm{239329}}^1$

素因数の和:239363

約数の個数: 24

約数和(自身を含む): 448025760

約数和(自身を除く): 200320245

約数列:

[1, 3, 5, 9, 15, 23, 45, 69, 115, 207, 345, 1035, 239329, 717987, 1196645, 2153961, 3589935, 5504567, 10769805, 16513701, 27522835, 49541103, 82568505, 247705515]

約数ペア:

[(1, 247705515), (3, 82568505), (5, 49541103), (9, 27522835), (15, 16513701), (23, 10769805), (45, 5504567), (69, 3589935), (115, 2153961), (207, 1196645), (345, 717987), (1035, 239329)]