31518357

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{137}}^1\times {\mathrm{347}}^1$

素因数の和:517

約数の個数: 32

約数和(自身を含む): 48408192

約数和(自身を除く): 16889835

約数列:

[1, 3, 13, 17, 39, 51, 137, 221, 347, 411, 663, 1041, 1781, 2329, 4511, 5343, 5899, 6987, 13533, 17697, 30277, 47539, 76687, 90831, 142617, 230061, 618007, 808163, 1854021, 2424489, 10506119, 31518357]

約数ペア:

[(1, 31518357), (3, 10506119), (13, 2424489), (17, 1854021), (39, 808163), (51, 618007), (137, 230061), (221, 142617), (347, 90831), (411, 76687), (663, 47539), (1041, 30277), (1781, 17697), (2329, 13533), (4511, 6987), (5343, 5899)]