81970161

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{15803}}^1$

素因数の和:15845

約数の個数: 32

約数和(自身を含む): 141603840

約数和(自身を除く): 59633679

約数列:

[1, 3, 7, 13, 19, 21, 39, 57, 91, 133, 247, 273, 399, 741, 1729, 5187, 15803, 47409, 110621, 205439, 300257, 331863, 616317, 900771, 1438073, 2101799, 3903341, 4314219, 6305397, 11710023, 27323387, 81970161]

約数ペア:

[(1, 81970161), (3, 27323387), (7, 11710023), (13, 6305397), (19, 4314219), (21, 3903341), (39, 2101799), (57, 1438073), (91, 900771), (133, 616317), (247, 331863), (273, 300257), (399, 205439), (741, 110621), (1729, 47409), (5187, 15803)]