81006898

素因数分解:

$2^1\times 7^2\times {\mathrm{41}}^1\times {\mathrm{20161}}^1$

素因数の和:20218

約数の個数: 24

約数和(自身を含む): 144803484

約数和(自身を除く): 63796586

約数列:

[1, 2, 7, 14, 41, 49, 82, 98, 287, 574, 2009, 4018, 20161, 40322, 141127, 282254, 826601, 987889, 1653202, 1975778, 5786207, 11572414, 40503449, 81006898]

約数ペア:

[(1, 81006898), (2, 40503449), (7, 11572414), (14, 5786207), (41, 1975778), (49, 1653202), (82, 987889), (98, 826601), (287, 282254), (574, 141127), (2009, 40322), (4018, 20161)]