12780821994

素因数分解:

$2^1\times 3^1\times {\mathrm{307}}^1\times {\mathrm{6938557}}^1$

素因数の和:6938869

約数の個数: 16

約数和(自身を含む): 25644910368

約数和(自身を除く): 12864088374

約数列:

[1, 2, 3, 6, 307, 614, 921, 1842, 6938557, 13877114, 20815671, 41631342, 2130136999, 4260273998, 6390410997, 12780821994]

約数ペア:

[(1, 12780821994), (2, 6390410997), (3, 4260273998), (6, 2130136999), (307, 41631342), (614, 20815671), (921, 13877114), (1842, 6938557)]