19978519

素因数分解:

${\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{5623}}^1$

素因数の和:5670

約数の個数: 16

約数和(自身を含む): 24295680

約数和(自身を除く): 4317161

約数列:

[1, 11, 17, 19, 187, 209, 323, 3553, 5623, 61853, 95591, 106837, 1051501, 1175207, 1816229, 19978519]

約数ペア:

[(1, 19978519), (11, 1816229), (17, 1175207), (19, 1051501), (187, 106837), (209, 95591), (323, 61853), (3553, 5623)]