16439553

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{1979}}^1$

素因数の和:2069

約数の個数: 24

約数和(自身を含む): 25945920

約数和(自身を除く): 9506367

約数列:

[1, 3, 9, 13, 39, 71, 117, 213, 639, 923, 1979, 2769, 5937, 8307, 17811, 25727, 77181, 140509, 231543, 421527, 1264581, 1826617, 5479851, 16439553]

約数ペア:

[(1, 16439553), (3, 5479851), (9, 1826617), (13, 1264581), (39, 421527), (71, 231543), (117, 140509), (213, 77181), (639, 25727), (923, 17811), (1979, 8307), (2769, 5937)]