257130012

素因数分解:

$2^2\times 3^1\times {\mathrm{21427501}}^1$

素因数の和:21427508

約数の個数: 12

約数和(自身を含む): 599970056

約数和(自身を除く): 342840044

約数列:

[1, 2, 3, 4, 6, 12, 21427501, 42855002, 64282503, 85710004, 128565006, 257130012]

約数ペア:

[(1, 257130012), (2, 128565006), (3, 85710004), (4, 64282503), (6, 42855002), (12, 21427501)]