28392687

素因数分解:

$3^4\times {\mathrm{71}}^1\times {\mathrm{4937}}^1$

素因数の和:5020

約数の個数: 20

約数和(自身を含む): 43019856

約数和(自身を除く): 14627169

約数列:

[1, 3, 9, 27, 71, 81, 213, 639, 1917, 4937, 5751, 14811, 44433, 133299, 350527, 399897, 1051581, 3154743, 9464229, 28392687]

約数ペア:

[(1, 28392687), (3, 9464229), (9, 3154743), (27, 1051581), (71, 399897), (81, 350527), (213, 133299), (639, 44433), (1917, 14811), (4937, 5751)]