2005164021

素因数分解:

$3^1\times 7^1\times {\mathrm{641}}^1\times {\mathrm{148961}}^1$

素因数の和:149612

約数の個数: 16

約数和(自身を含む): 3060275328

約数和(自身を除く): 1055111307

約数列:

[1, 3, 7, 21, 641, 1923, 4487, 13461, 148961, 446883, 1042727, 3128181, 95484001, 286452003, 668388007, 2005164021]

約数ペア:

[(1, 2005164021), (3, 668388007), (7, 286452003), (21, 95484001), (641, 3128181), (1923, 1042727), (4487, 446883), (13461, 148961)]