21000765601

素因数分解:

${\mathrm{17}}^2\times {\mathrm{71}}^1\times {\mathrm{193}}^1\times {\mathrm{5303}}^1$

素因数の和:5601

約数の個数: 24

約数和(自身を含む): 22744485504

約数和(自身を除く): 1743719903

約数列:

[1, 17, 71, 193, 289, 1207, 3281, 5303, 13703, 20519, 55777, 90151, 232951, 376513, 1023479, 1532567, 3960167, 6400721, 17399143, 72667009, 108812257, 295785431, 1235339153, 21000765601]

約数ペア:

[(1, 21000765601), (17, 1235339153), (71, 295785431), (193, 108812257), (289, 72667009), (1207, 17399143), (3281, 6400721), (5303, 3960167), (13703, 1532567), (20519, 1023479), (55777, 376513), (90151, 232951)]