21686882

素因数分解:

$2^1\times 7^1\times {\mathrm{401}}^1\times {\mathrm{3863}}^1$

素因数の和:4273

約数の個数: 16

約数和(自身を含む): 37279872

約数和(自身を除く): 15592990

約数列:

[1, 2, 7, 14, 401, 802, 2807, 3863, 5614, 7726, 27041, 54082, 1549063, 3098126, 10843441, 21686882]

約数ペア:

[(1, 21686882), (2, 10843441), (7, 3098126), (14, 1549063), (401, 54082), (802, 27041), (2807, 7726), (3863, 5614)]