19980857554

素因数分解:

$2^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{83953183}}^1$

素因数の和:83953209

約数の個数: 16

約数和(自身を含む): 36267775488

約数和(自身を除く): 16286917934

約数列:

[1, 2, 7, 14, 17, 34, 119, 238, 83953183, 167906366, 587672281, 1175344562, 1427204111, 2854408222, 9990428777, 19980857554]

約数ペア:

[(1, 19980857554), (2, 9990428777), (7, 2854408222), (14, 1427204111), (17, 1175344562), (34, 587672281), (119, 167906366), (238, 83953183)]