21686294

素因数分解:

$2^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{37781}}^1$

素因数の和:37831

約数の個数: 16

約数和(自身を含む): 38084256

約数和(自身を除く): 16397962

約数列:

[1, 2, 7, 14, 41, 82, 287, 574, 37781, 75562, 264467, 528934, 1549021, 3098042, 10843147, 21686294]

約数ペア:

[(1, 21686294), (2, 10843147), (7, 3098042), (14, 1549021), (41, 528934), (82, 264467), (287, 75562), (574, 37781)]