81947115

素因数分解:

$3^2\times 5^1\times {\mathrm{1223}}^1\times {\mathrm{1489}}^1$

素因数の和:2723

約数の個数: 24

約数和(自身を含む): 142253280

約数和(自身を除く): 60306165

約数列:

[1, 3, 5, 9, 15, 45, 1223, 1489, 3669, 4467, 6115, 7445, 11007, 13401, 18345, 22335, 55035, 67005, 1821047, 5463141, 9105235, 16389423, 27315705, 81947115]

約数ペア:

[(1, 81947115), (3, 27315705), (5, 16389423), (9, 9105235), (15, 5463141), (45, 1821047), (1223, 67005), (1489, 55035), (3669, 22335), (4467, 18345), (6115, 13401), (7445, 11007)]