13209905

素因数分解:

$5^1\times {\mathrm{71}}^1\times {\mathrm{127}}^1\times {\mathrm{293}}^1$

素因数の和:496

約数の個数: 16

約数和(自身を含む): 16257024

約数和(自身を除く): 3047119

約数列:

[1, 5, 71, 127, 293, 355, 635, 1465, 9017, 20803, 37211, 45085, 104015, 186055, 2641981, 13209905]

約数ペア:

[(1, 13209905), (5, 2641981), (71, 186055), (127, 104015), (293, 45085), (355, 37211), (635, 20803), (1465, 9017)]