21460929

素因数分解:

$3^1\times 7^1\times {\mathrm{541}}^1\times {\mathrm{1889}}^1$

素因数の和:2440

約数の個数: 16

約数和(自身を含む): 32780160

約数和(自身を除く): 11319231

約数列:

[1, 3, 7, 21, 541, 1623, 1889, 3787, 5667, 11361, 13223, 39669, 1021949, 3065847, 7153643, 21460929]

約数ペア:

[(1, 21460929), (3, 7153643), (7, 3065847), (21, 1021949), (541, 39669), (1623, 13223), (1889, 11361), (3787, 5667)]