20515929

素因数分解:

$3^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{18433}}^1$

素因数の和:18496

約数の個数: 16

約数和(自身を含む): 31853952

約数和(自身を除く): 11338023

約数列:

[1, 3, 7, 21, 53, 159, 371, 1113, 18433, 55299, 129031, 387093, 976949, 2930847, 6838643, 20515929]

約数ペア:

[(1, 20515929), (3, 6838643), (7, 2930847), (21, 976949), (53, 387093), (159, 129031), (371, 55299), (1113, 18433)]