20890936

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{5051}}^1$

素因数の和:5115

約数の個数: 32

約数和(自身を含む): 43649280

約数和(自身を除く): 22758344

約数列:

[1, 2, 4, 8, 11, 22, 44, 47, 88, 94, 188, 376, 517, 1034, 2068, 4136, 5051, 10102, 20204, 40408, 55561, 111122, 222244, 237397, 444488, 474794, 949588, 1899176, 2611367, 5222734, 10445468, 20890936]

約数ペア:

[(1, 20890936), (2, 10445468), (4, 5222734), (8, 2611367), (11, 1899176), (22, 949588), (44, 474794), (47, 444488), (88, 237397), (94, 222244), (188, 111122), (376, 55561), (517, 40408), (1034, 20204), (2068, 10102), (4136, 5051)]