81342947

素因数分解:

$7^1\times {\mathrm{47}}^1\times {\mathrm{433}}^1\times {\mathrm{571}}^1$

素因数の和:1058

約数の個数: 16

約数和(自身を含む): 95327232

約数和(自身を除く): 13984285

約数列:

[1, 7, 47, 329, 433, 571, 3031, 3997, 20351, 26837, 142457, 187859, 247243, 1730701, 11620421, 81342947]

約数ペア:

[(1, 81342947), (7, 11620421), (47, 1730701), (329, 247243), (433, 187859), (571, 142457), (3031, 26837), (3997, 20351)]