81996434

素因数分解:

$2^1\times {\mathrm{13}}^3\times {\mathrm{18661}}^1$

素因数の和:18702

約数の個数: 16

約数和(自身を含む): 133246680

約数和(自身を除く): 51250246

約数列:

[1, 2, 13, 26, 169, 338, 2197, 4394, 18661, 37322, 242593, 485186, 3153709, 6307418, 40998217, 81996434]

約数ペア:

[(1, 81996434), (2, 40998217), (13, 6307418), (26, 3153709), (169, 485186), (338, 242593), (2197, 37322), (4394, 18661)]