19996744

素因数分解:

$2^3\times {\mathrm{73}}^1\times {\mathrm{97}}^1\times {\mathrm{353}}^1$

素因数の和:529

約数の個数: 32

約数和(自身を含む): 38508120

約数和(自身を除く): 18511376

約数列:

[1, 2, 4, 8, 73, 97, 146, 194, 292, 353, 388, 584, 706, 776, 1412, 2824, 7081, 14162, 25769, 28324, 34241, 51538, 56648, 68482, 103076, 136964, 206152, 273928, 2499593, 4999186, 9998372, 19996744]

約数ペア:

[(1, 19996744), (2, 9998372), (4, 4999186), (8, 2499593), (73, 273928), (97, 206152), (146, 136964), (194, 103076), (292, 68482), (353, 56648), (388, 51538), (584, 34241), (706, 28324), (776, 25769), (1412, 14162), (2824, 7081)]