19960787

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{1277}}^1$

素因数の和:1331

約数の個数: 24

約数和(自身を含む): 26224560

約数和(自身を除く): 6263773

約数列:

[1, 7, 11, 29, 49, 77, 203, 319, 539, 1277, 1421, 2233, 8939, 14047, 15631, 37033, 62573, 98329, 259231, 407363, 688303, 1814617, 2851541, 19960787]

約数ペア:

[(1, 19960787), (7, 2851541), (11, 1814617), (29, 688303), (49, 407363), (77, 259231), (203, 98329), (319, 62573), (539, 37033), (1277, 15631), (1421, 14047), (2233, 8939)]