21294047

素因数分解:

${\mathrm{17}}^1\times {\mathrm{41}}^1\times {\mathrm{137}}^1\times {\mathrm{223}}^1$

素因数の和:418

約数の個数: 16

約数和(自身を含む): 23369472

約数和(自身を除く): 2075425

約数列:

[1, 17, 41, 137, 223, 697, 2329, 3791, 5617, 9143, 30551, 95489, 155431, 519367, 1252591, 21294047]

約数ペア:

[(1, 21294047), (17, 1252591), (41, 519367), (137, 155431), (223, 95489), (697, 30551), (2329, 9143), (3791, 5617)]