20931176

素因数分解:

$2^3\times 7^1\times {\mathrm{139}}^1\times {\mathrm{2689}}^1$

素因数の和:2841

約数の個数: 32

約数和(自身を含む): 45192000

約数和(自身を除く): 24260824

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 139, 278, 556, 973, 1112, 1946, 2689, 3892, 5378, 7784, 10756, 18823, 21512, 37646, 75292, 150584, 373771, 747542, 1495084, 2616397, 2990168, 5232794, 10465588, 20931176]

約数ペア:

[(1, 20931176), (2, 10465588), (4, 5232794), (7, 2990168), (8, 2616397), (14, 1495084), (28, 747542), (56, 373771), (139, 150584), (278, 75292), (556, 37646), (973, 21512), (1112, 18823), (1946, 10756), (2689, 7784), (3892, 5378)]