81698409

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{5413}}^1$

素因数の和:5478

約数の個数: 32

約数和(自身を含む): 133400960

約数和(自身を除く): 51702551

約数列:

[1, 3, 9, 13, 27, 39, 43, 117, 129, 351, 387, 559, 1161, 1677, 5031, 5413, 15093, 16239, 48717, 70369, 146151, 211107, 232759, 633321, 698277, 1899963, 2094831, 3025867, 6284493, 9077601, 27232803, 81698409]

約数ペア:

[(1, 81698409), (3, 27232803), (9, 9077601), (13, 6284493), (27, 3025867), (39, 2094831), (43, 1899963), (117, 698277), (129, 633321), (351, 232759), (387, 211107), (559, 146151), (1161, 70369), (1677, 48717), (5031, 16239), (5413, 15093)]