18688929

素因数分解:

$3^1\times 7^1\times {\mathrm{683}}^1\times {\mathrm{1303}}^1$

素因数の和:1996

約数の個数: 16

約数和(自身を含む): 28541952

約数和(自身を除く): 9853023

約数列:

[1, 3, 7, 21, 683, 1303, 2049, 3909, 4781, 9121, 14343, 27363, 889949, 2669847, 6229643, 18688929]

約数ペア:

[(1, 18688929), (3, 6229643), (7, 2669847), (21, 889949), (683, 27363), (1303, 14343), (2049, 9121), (3909, 4781)]