20337447

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{643}}^1\times {\mathrm{811}}^1$

素因数の和:1470

約数の個数: 16

約数和(自身を含む): 29283968

約数和(自身を除く): 8946521

約数列:

[1, 3, 13, 39, 643, 811, 1929, 2433, 8359, 10543, 25077, 31629, 521473, 1564419, 6779149, 20337447]

約数ペア:

[(1, 20337447), (3, 6779149), (13, 1564419), (39, 521473), (643, 31629), (811, 25077), (1929, 10543), (2433, 8359)]