128521554

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{643}}^1\times {\mathrm{4759}}^1$

素因数の和:5414

約数の個数: 32

約数和(自身を含む): 294282240

約数和(自身を除く): 165760686

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 643, 1286, 1929, 3858, 4501, 4759, 9002, 9518, 13503, 14277, 27006, 28554, 33313, 66626, 99939, 199878, 3060037, 6120074, 9180111, 18360222, 21420259, 42840518, 64260777, 128521554]

約数ペア:

[(1, 128521554), (2, 64260777), (3, 42840518), (6, 21420259), (7, 18360222), (14, 9180111), (21, 6120074), (42, 3060037), (643, 199878), (1286, 99939), (1929, 66626), (3858, 33313), (4501, 28554), (4759, 27006), (9002, 14277), (9518, 13503)]