21064976

素因数分解:

$2^4\times {\mathrm{439}}^1\times {\mathrm{2999}}^1$

素因数の和:3446

約数の個数: 20

約数和(自身を含む): 40920000

約数和(自身を除く): 19855024

約数列:

[1, 2, 4, 8, 16, 439, 878, 1756, 2999, 3512, 5998, 7024, 11996, 23992, 47984, 1316561, 2633122, 5266244, 10532488, 21064976]

約数ペア:

[(1, 21064976), (2, 10532488), (4, 5266244), (8, 2633122), (16, 1316561), (439, 47984), (878, 23992), (1756, 11996), (2999, 7024), (3512, 5998)]