20931886136

素因数分解:

$2^3\times 7^1\times {\mathrm{79}}^1\times {\mathrm{4731439}}^1$

素因数の和:4731531

約数の個数: 32

約数和(自身を含む): 45421824000

約数和(自身を除く): 24489937864

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 79, 158, 316, 553, 632, 1106, 2212, 4424, 4731439, 9462878, 18925756, 33120073, 37851512, 66240146, 132480292, 264960584, 373783681, 747567362, 1495134724, 2616485767, 2990269448, 5232971534, 10465943068, 20931886136]

約数ペア:

[(1, 20931886136), (2, 10465943068), (4, 5232971534), (7, 2990269448), (8, 2616485767), (14, 1495134724), (28, 747567362), (56, 373783681), (79, 264960584), (158, 132480292), (316, 66240146), (553, 37851512), (632, 33120073), (1106, 18925756), (2212, 9462878), (4424, 4731439)]