18972904

素因数分解:

$2^3\times {\mathrm{71}}^1\times {\mathrm{33403}}^1$

素因数の和:33480

約数の個数: 16

約数和(自身を含む): 36076320

約数和(自身を除く): 17103416

約数列:

[1, 2, 4, 8, 71, 142, 284, 568, 33403, 66806, 133612, 267224, 2371613, 4743226, 9486452, 18972904]

約数ペア:

[(1, 18972904), (2, 9486452), (4, 4743226), (8, 2371613), (71, 267224), (142, 133612), (284, 66806), (568, 33403)]