20841208

素因数分解:

$2^3\times {\mathrm{73}}^1\times {\mathrm{127}}^1\times {\mathrm{281}}^1$

素因数の和:487

約数の個数: 32

約数和(自身を含む): 40066560

約数和(自身を除く): 19225352

約数列:

[1, 2, 4, 8, 73, 127, 146, 254, 281, 292, 508, 562, 584, 1016, 1124, 2248, 9271, 18542, 20513, 35687, 37084, 41026, 71374, 74168, 82052, 142748, 164104, 285496, 2605151, 5210302, 10420604, 20841208]

約数ペア:

[(1, 20841208), (2, 10420604), (4, 5210302), (8, 2605151), (73, 285496), (127, 164104), (146, 142748), (254, 82052), (281, 74168), (292, 71374), (508, 41026), (562, 37084), (584, 35687), (1016, 20513), (1124, 18542), (2248, 9271)]