21754117

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{151}}^1\times {\mathrm{1871}}^1$

素因数の和:2040

約数の個数: 16

約数和(自身を含む): 27316224

約数和(自身を除く): 5562107

約数列:

[1, 7, 11, 77, 151, 1057, 1661, 1871, 11627, 13097, 20581, 144067, 282521, 1977647, 3107731, 21754117]

約数ペア:

[(1, 21754117), (7, 3107731), (11, 1977647), (77, 282521), (151, 144067), (1057, 20581), (1661, 13097), (1871, 11627)]