12781554

素因数分解:

$2^1\times 3^1\times {\mathrm{643}}^1\times {\mathrm{3313}}^1$

素因数の和:3961

約数の個数: 16

約数和(自身を含む): 25610592

約数和(自身を除く): 12829038

約数列:

[1, 2, 3, 6, 643, 1286, 1929, 3313, 3858, 6626, 9939, 19878, 2130259, 4260518, 6390777, 12781554]

約数ペア:

[(1, 12781554), (2, 6390777), (3, 4260518), (6, 2130259), (643, 19878), (1286, 9939), (1929, 6626), (3313, 3858)]