21668044

素因数分解:

$2^2\times {\mathrm{43}}^1\times {\mathrm{263}}^1\times {\mathrm{479}}^1$

素因数の和:789

約数の個数: 24

約数和(自身を含む): 39029760

約数和(自身を除く): 17361716

約数列:

[1, 2, 4, 43, 86, 172, 263, 479, 526, 958, 1052, 1916, 11309, 20597, 22618, 41194, 45236, 82388, 125977, 251954, 503908, 5417011, 10834022, 21668044]

約数ペア:

[(1, 21668044), (2, 10834022), (4, 5417011), (43, 503908), (86, 251954), (172, 125977), (263, 82388), (479, 45236), (526, 41194), (958, 22618), (1052, 20597), (1916, 11309)]