388664991

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{301993}}^1$

素因数の和:302023

約数の個数: 24

約数和(自身を含む): 659554896

約数和(自身を除く): 270889905

約数列:

[1, 3, 9, 11, 13, 33, 39, 99, 117, 143, 429, 1287, 301993, 905979, 2717937, 3321923, 3925909, 9965769, 11777727, 29897307, 35333181, 43184999, 129554997, 388664991]

約数ペア:

[(1, 388664991), (3, 129554997), (9, 43184999), (11, 35333181), (13, 29897307), (33, 11777727), (39, 9965769), (99, 3925909), (117, 3321923), (143, 2717937), (429, 905979), (1287, 301993)]