21321016

素因数分解:

$2^3\times {\mathrm{71}}^1\times {\mathrm{37537}}^1$

素因数の和:37614

約数の個数: 16

約数和(自身を含む): 40541040

約数和(自身を除く): 19220024

約数列:

[1, 2, 4, 8, 71, 142, 284, 568, 37537, 75074, 150148, 300296, 2665127, 5330254, 10660508, 21321016]

約数ペア:

[(1, 21321016), (2, 10660508), (4, 5330254), (8, 2665127), (71, 300296), (142, 150148), (284, 75074), (568, 37537)]