257551479

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{19}}^2\times {\mathrm{4663}}^1$

素因数の和:4724

約数の個数: 36

約数和(自身を含む): 415814256

約数和(自身を除く): 158262777

約数列:

[1, 3, 9, 17, 19, 51, 57, 153, 171, 323, 361, 969, 1083, 2907, 3249, 4663, 6137, 13989, 18411, 41967, 55233, 79271, 88597, 237813, 265791, 713439, 797373, 1506149, 1683343, 4518447, 5050029, 13555341, 15150087, 28616831, 85850493, 257551479]

約数ペア:

[(1, 257551479), (3, 85850493), (9, 28616831), (17, 15150087), (19, 13555341), (51, 5050029), (57, 4518447), (153, 1683343), (171, 1506149), (323, 797373), (361, 713439), (969, 265791), (1083, 237813), (2907, 88597), (3249, 79271), (4663, 55233), (6137, 41967), (13989, 18411)]