28987654

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{353}}^1\times {\mathrm{2161}}^1$

素因数の和:2535

約数の個数: 16

約数和(自身を含む): 45920880

約数和(自身を除く): 16933226

約数列:

[1, 2, 19, 38, 353, 706, 2161, 4322, 6707, 13414, 41059, 82118, 762833, 1525666, 14493827, 28987654]

約数ペア:

[(1, 28987654), (2, 14493827), (19, 1525666), (38, 762833), (353, 82118), (706, 41059), (2161, 13414), (4322, 6707)]