20768991

素因数分解:

$3^1\times {\mathrm{71}}^1\times {\mathrm{281}}^1\times {\mathrm{347}}^1$

素因数の和:702

約数の個数: 16

約数和(自身を含む): 28263168

約数和(自身を除く): 7494177

約数列:

[1, 3, 71, 213, 281, 347, 843, 1041, 19951, 24637, 59853, 73911, 97507, 292521, 6922997, 20768991]

約数ペア:

[(1, 20768991), (3, 6922997), (71, 292521), (213, 97507), (281, 73911), (347, 59853), (843, 24637), (1041, 19951)]