81000012

素因数分解:

$2^2\times 3^1\times {\mathrm{6750001}}^1$

素因数の和:6750008

約数の個数: 12

約数和(自身を含む): 189000056

約数和(自身を除く): 108000044

約数列:

[1, 2, 3, 4, 6, 12, 6750001, 13500002, 20250003, 27000004, 40500006, 81000012]

約数ペア:

[(1, 81000012), (2, 40500006), (3, 27000004), (4, 20250003), (6, 13500002), (12, 6750001)]