21760277

素因数分解:

$7^1\times {\mathrm{11}}^2\times {\mathrm{23}}^1\times {\mathrm{1117}}^1$

素因数の和:1169

約数の個数: 24

約数和(自身を含む): 28549248

約数和(自身を除く): 6788971

約数列:

[1, 7, 11, 23, 77, 121, 161, 253, 847, 1117, 1771, 2783, 7819, 12287, 19481, 25691, 86009, 135157, 179837, 282601, 946099, 1978207, 3108611, 21760277]

約数ペア:

[(1, 21760277), (7, 3108611), (11, 1978207), (23, 946099), (77, 282601), (121, 179837), (161, 135157), (253, 86009), (847, 25691), (1117, 19481), (1771, 12287), (2783, 7819)]