21840976

素因数分解:

$2^4\times {\mathrm{487}}^1\times {\mathrm{2803}}^1$

素因数の和:3298

約数の個数: 20

約数和(自身を含む): 42418912

約数和(自身を除く): 20577936

約数列:

[1, 2, 4, 8, 16, 487, 974, 1948, 2803, 3896, 5606, 7792, 11212, 22424, 44848, 1365061, 2730122, 5460244, 10920488, 21840976]

約数ペア:

[(1, 21840976), (2, 10920488), (4, 5460244), (8, 2730122), (16, 1365061), (487, 44848), (974, 22424), (1948, 11212), (2803, 7792), (3896, 5606)]