128519217

素因数分解:

$3^4\times {\mathrm{43}}^1\times {\mathrm{36899}}^1$

素因数の和:36954

約数の個数: 20

約数和(自身を含む): 196455600

約数和(自身を除く): 67936383

約数列:

[1, 3, 9, 27, 43, 81, 129, 387, 1161, 3483, 36899, 110697, 332091, 996273, 1586657, 2988819, 4759971, 14279913, 42839739, 128519217]

約数ペア:

[(1, 128519217), (3, 42839739), (9, 14279913), (27, 4759971), (43, 2988819), (81, 1586657), (129, 996273), (387, 332091), (1161, 110697), (3483, 36899)]