20781426

素因数分解:

$2^1\times 3^1\times {\mathrm{47}}^1\times {\mathrm{73693}}^1$

素因数の和:73745

約数の個数: 16

約数和(自身を含む): 42447744

約数和(自身を除く): 21666318

約数列:

[1, 2, 3, 6, 47, 94, 141, 282, 73693, 147386, 221079, 442158, 3463571, 6927142, 10390713, 20781426]

約数ペア:

[(1, 20781426), (2, 10390713), (3, 6927142), (6, 3463571), (47, 442158), (94, 221079), (141, 147386), (282, 73693)]