78987519

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{691}}^1\times {\mathrm{977}}^1$

素因数の和:1687

約数の個数: 24

約数和(自身を含む): 123173232

約数和(自身を除く): 44185713

約数列:

[1, 3, 9, 13, 39, 117, 691, 977, 2073, 2931, 6219, 8793, 8983, 12701, 26949, 38103, 80847, 114309, 675107, 2025321, 6075963, 8776391, 26329173, 78987519]

約数ペア:

[(1, 78987519), (3, 26329173), (9, 8776391), (13, 6075963), (39, 2025321), (117, 675107), (691, 114309), (977, 80847), (2073, 38103), (2931, 26949), (6219, 12701), (8793, 8983)]