138873889

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{101}}^1\times {\mathrm{2551}}^1$

素因数の和:2677

約数の個数: 24

約数和(自身を含む): 178047936

約数和(自身を除く): 39174047

約数列:

[1, 7, 11, 49, 77, 101, 539, 707, 1111, 2551, 4949, 7777, 17857, 28061, 54439, 124999, 196427, 257651, 1374989, 1803557, 2834161, 12624899, 19839127, 138873889]

約数ペア:

[(1, 138873889), (7, 19839127), (11, 12624899), (49, 2834161), (77, 1803557), (101, 1374989), (539, 257651), (707, 196427), (1111, 124999), (2551, 54439), (4949, 28061), (7777, 17857)]