12585815

素因数分解:

$5^1\times {\mathrm{11}}^2\times {\mathrm{71}}^1\times {\mathrm{293}}^1$

素因数の和:391

約数の個数: 24

約数和(自身を含む): 16892064

約数和(自身を除く): 4306249

約数列:

[1, 5, 11, 55, 71, 121, 293, 355, 605, 781, 1465, 3223, 3905, 8591, 16115, 20803, 35453, 42955, 104015, 177265, 228833, 1144165, 2517163, 12585815]

約数ペア:

[(1, 12585815), (5, 2517163), (11, 1144165), (55, 228833), (71, 177265), (121, 104015), (293, 42955), (355, 35453), (605, 20803), (781, 16115), (1465, 8591), (3223, 3905)]