128534211

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{15473}}^1$

素因数の和:15563

約数の個数: 24

約数和(自身を含む): 202771296

約数和(自身を除く): 74237085

約数列:

[1, 3, 9, 13, 39, 71, 117, 213, 639, 923, 2769, 8307, 15473, 46419, 139257, 201149, 603447, 1098583, 1810341, 3295749, 9887247, 14281579, 42844737, 128534211]

約数ペア:

[(1, 128534211), (3, 42844737), (9, 14281579), (13, 9887247), (39, 3295749), (71, 1810341), (117, 1098583), (213, 603447), (639, 201149), (923, 139257), (2769, 46419), (8307, 15473)]