13991271

素因数分解:

$3^1\times 7^1\times {\mathrm{281}}^1\times {\mathrm{2371}}^1$

素因数の和:2662

約数の個数: 16

約数和(自身を含む): 21404928

約数和(自身を除く): 7413657

約数列:

[1, 3, 7, 21, 281, 843, 1967, 2371, 5901, 7113, 16597, 49791, 666251, 1998753, 4663757, 13991271]

約数ペア:

[(1, 13991271), (3, 4663757), (7, 1998753), (21, 666251), (281, 49791), (843, 16597), (1967, 7113), (2371, 5901)]