81993819

素因数分解:

$3^1\times {\mathrm{43}}^1\times {\mathrm{73}}^1\times {\mathrm{8707}}^1$

素因数の和:8826

約数の個数: 16

約数和(自身を含む): 113412992

約数和(自身を除く): 31419173

約数列:

[1, 3, 43, 73, 129, 219, 3139, 8707, 9417, 26121, 374401, 635611, 1123203, 1906833, 27331273, 81993819]

約数ペア:

[(1, 81993819), (3, 27331273), (43, 1906833), (73, 1123203), (129, 635611), (219, 374401), (3139, 26121), (8707, 9417)]