18968593

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{127}}^1\times {\mathrm{1123}}^1$

素因数の和:1276

約数の個数: 16

約数和(自身を含む): 23019520

約数和(自身を除く): 4050927

約数列:

[1, 7, 19, 127, 133, 889, 1123, 2413, 7861, 16891, 21337, 142621, 149359, 998347, 2709799, 18968593]

約数ペア:

[(1, 18968593), (7, 2709799), (19, 998347), (127, 149359), (133, 142621), (889, 21337), (1123, 16891), (2413, 7861)]