20147232021

素因数分解:

$3^1\times 7^1\times {\mathrm{691}}^1\times {\mathrm{1388411}}^1$

素因数の和:1389112

約数の個数: 16

約数和(自身を含む): 30744995328

約数和(自身を除く): 10597763307

約数列:

[1, 3, 7, 21, 691, 2073, 4837, 14511, 1388411, 4165233, 9718877, 29156631, 959392001, 2878176003, 6715744007, 20147232021]

約数ペア:

[(1, 20147232021), (3, 6715744007), (7, 2878176003), (21, 959392001), (691, 29156631), (2073, 9718877), (4837, 4165233), (14511, 1388411)]