21393436

素因数分解:

$2^2\times {\mathrm{71}}^1\times {\mathrm{75329}}^1$

素因数の和:75404

約数の個数: 12

約数和(自身を含む): 37966320

約数和(自身を除く): 16572884

約数列:

[1, 2, 4, 71, 142, 284, 75329, 150658, 301316, 5348359, 10696718, 21393436]

約数ペア:

[(1, 21393436), (2, 10696718), (4, 5348359), (71, 301316), (142, 150658), (284, 75329)]