261587178

素因数分解:

$2^1\times 3^3\times {\mathrm{73}}^1\times {\mathrm{66359}}^1$

素因数の和:66443

約数の個数: 32

約数和(自身を含む): 589276800

約数和(自身を除く): 327689622

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 73, 146, 219, 438, 657, 1314, 1971, 3942, 66359, 132718, 199077, 398154, 597231, 1194462, 1791693, 3583386, 4844207, 9688414, 14532621, 29065242, 43597863, 87195726, 130793589, 261587178]

約数ペア:

[(1, 261587178), (2, 130793589), (3, 87195726), (6, 43597863), (9, 29065242), (18, 14532621), (27, 9688414), (54, 4844207), (73, 3583386), (146, 1791693), (219, 1194462), (438, 597231), (657, 398154), (1314, 199077), (1971, 132718), (3942, 66359)]