28478757

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{109}}^2$

素因数の和:285

約数の個数: 24

約数和(自身を含む): 41440896

約数和(自身を除く): 12962139

約数列:

[1, 3, 17, 47, 51, 109, 141, 327, 799, 1853, 2397, 5123, 5559, 11881, 15369, 35643, 87091, 201977, 261273, 558407, 605931, 1675221, 9492919, 28478757]

約数ペア:

[(1, 28478757), (3, 9492919), (17, 1675221), (47, 605931), (51, 558407), (109, 261273), (141, 201977), (327, 87091), (799, 35643), (1853, 15369), (2397, 11881), (5123, 5559)]