20087081

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{59}}^1\times {\mathrm{2861}}^1$

素因数の和:2944

約数の個数: 16

約数和(自身を含む): 24727680

約数和(自身を除く): 4640599

約数列:

[1, 7, 17, 59, 119, 413, 1003, 2861, 7021, 20027, 48637, 168799, 340459, 1181593, 2869583, 20087081]

約数ペア:

[(1, 20087081), (7, 2869583), (17, 1181593), (59, 340459), (119, 168799), (413, 48637), (1003, 20027), (2861, 7021)]