21968140

素因数分解:

$2^2\times 5^1\times {\mathrm{757}}^1\times {\mathrm{1451}}^1$

素因数の和:2217

約数の個数: 24

約数和(自身を含む): 46225872

約数和(自身を除く): 24257732

約数列:

[1, 2, 4, 5, 10, 20, 757, 1451, 1514, 2902, 3028, 3785, 5804, 7255, 7570, 14510, 15140, 29020, 1098407, 2196814, 4393628, 5492035, 10984070, 21968140]

約数ペア:

[(1, 21968140), (2, 10984070), (4, 5492035), (5, 4393628), (10, 2196814), (20, 1098407), (757, 29020), (1451, 15140), (1514, 14510), (2902, 7570), (3028, 7255), (3785, 5804)]