21405392

素因数分解:

$2^4\times {\mathrm{167}}^1\times {\mathrm{8011}}^1$

素因数の和:8186

約数の個数: 20

約数和(自身を含む): 41726496

約数和(自身を除く): 20321104

約数列:

[1, 2, 4, 8, 16, 167, 334, 668, 1336, 2672, 8011, 16022, 32044, 64088, 128176, 1337837, 2675674, 5351348, 10702696, 21405392]

約数ペア:

[(1, 21405392), (2, 10702696), (4, 5351348), (8, 2675674), (16, 1337837), (167, 128176), (334, 64088), (668, 32044), (1336, 16022), (2672, 8011)]