66781561

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{6521}}^1$

素因数の和:6565

約数の個数: 24

約数和(自身を含む): 89220960

約数和(自身を除く): 22439399

約数列:

[1, 7, 11, 19, 49, 77, 133, 209, 539, 931, 1463, 6521, 10241, 45647, 71731, 123899, 319529, 502117, 867293, 1362889, 3514819, 6071051, 9540223, 66781561]

約数ペア:

[(1, 66781561), (7, 9540223), (11, 6071051), (19, 3514819), (49, 1362889), (77, 867293), (133, 502117), (209, 319529), (539, 123899), (931, 71731), (1463, 45647), (6521, 10241)]