21978834

素因数分解:

$2^1\times 3^1\times {\mathrm{673}}^1\times {\mathrm{5443}}^1$

素因数の和:6121

約数の個数: 16

約数和(自身を含む): 44031072

約数和(自身を除く): 22052238

約数列:

[1, 2, 3, 6, 673, 1346, 2019, 4038, 5443, 10886, 16329, 32658, 3663139, 7326278, 10989417, 21978834]

約数ペア:

[(1, 21978834), (2, 10989417), (3, 7326278), (6, 3663139), (673, 32658), (1346, 16329), (2019, 10886), (4038, 5443)]