21326128

素因数分解:

$2^4\times {\mathrm{71}}^1\times {\mathrm{18773}}^1$

素因数の和:18852

約数の個数: 20

約数和(自身を含む): 41903568

約数和(自身を除く): 20577440

約数列:

[1, 2, 4, 8, 16, 71, 142, 284, 568, 1136, 18773, 37546, 75092, 150184, 300368, 1332883, 2665766, 5331532, 10663064, 21326128]

約数ペア:

[(1, 21326128), (2, 10663064), (4, 5331532), (8, 2665766), (16, 1332883), (71, 300368), (142, 150184), (284, 75092), (568, 37546), (1136, 18773)]