20137304

素因数分解:

$2^3\times {\mathrm{11}}^2\times {\mathrm{71}}^1\times {\mathrm{293}}^1$

素因数の和:392

約数の個数: 48

約数和(自身を含む): 42230160

約数和(自身を除く): 22092856

約数列:

[1, 2, 4, 8, 11, 22, 44, 71, 88, 121, 142, 242, 284, 293, 484, 568, 586, 781, 968, 1172, 1562, 2344, 3124, 3223, 6248, 6446, 8591, 12892, 17182, 20803, 25784, 34364, 35453, 41606, 68728, 70906, 83212, 141812, 166424, 228833, 283624, 457666, 915332, 1830664, 2517163, 5034326, 10068652, 20137304]

約数ペア:

[(1, 20137304), (2, 10068652), (4, 5034326), (8, 2517163), (11, 1830664), (22, 915332), (44, 457666), (71, 283624), (88, 228833), (121, 166424), (142, 141812), (242, 83212), (284, 70906), (293, 68728), (484, 41606), (568, 35453), (586, 34364), (781, 25784), (968, 20803), (1172, 17182), (1562, 12892), (2344, 8591), (3124, 6446), (3223, 6248)]