21707912

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{159617}}^1$

素因数の和:159640

約数の個数: 16

約数和(自身を含む): 43096860

約数和(自身を除く): 21388948

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 159617, 319234, 638468, 1276936, 2713489, 5426978, 10853956, 21707912]

約数ペア:

[(1, 21707912), (2, 10853956), (4, 5426978), (8, 2713489), (17, 1276936), (34, 638468), (68, 319234), (136, 159617)]