81005155

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{210403}}^1$

素因数の和:210426

約数の個数: 16

約数和(自身を含む): 121192704

約数和(自身を除く): 40187549

約数列:

[1, 5, 7, 11, 35, 55, 77, 385, 210403, 1052015, 1472821, 2314433, 7364105, 11572165, 16201031, 81005155]

約数ペア:

[(1, 81005155), (5, 16201031), (7, 11572165), (11, 7364105), (35, 2314433), (55, 1472821), (77, 1052015), (385, 210403)]