81525724

素因数分解:

$2^2\times 7^1\times {\mathrm{139}}^1\times {\mathrm{20947}}^1$

素因数の和:21097

約数の個数: 24

約数和(自身を含む): 164232320

約数和(自身を除く): 82706596

約数列:

[1, 2, 4, 7, 14, 28, 139, 278, 556, 973, 1946, 3892, 20947, 41894, 83788, 146629, 293258, 586516, 2911633, 5823266, 11646532, 20381431, 40762862, 81525724]

約数ペア:

[(1, 81525724), (2, 40762862), (4, 20381431), (7, 11646532), (14, 5823266), (28, 2911633), (139, 586516), (278, 293258), (556, 146629), (973, 83788), (1946, 41894), (3892, 20947)]