261636333

素因数分解:

$3^1\times 7^2\times {\mathrm{701}}^1\times {\mathrm{2539}}^1$

素因数の和:3257

約数の個数: 24

約数和(自身を含む): 406542240

約数和(自身を除く): 144905907

約数列:

[1, 3, 7, 21, 49, 147, 701, 2103, 2539, 4907, 7617, 14721, 17773, 34349, 53319, 103047, 124411, 373233, 1779839, 5339517, 12458873, 37376619, 87212111, 261636333]

約数ペア:

[(1, 261636333), (3, 87212111), (7, 37376619), (21, 12458873), (49, 5339517), (147, 1779839), (701, 373233), (2103, 124411), (2539, 103047), (4907, 53319), (7617, 34349), (14721, 17773)]