20402001639

素因数分解:

$3^2\times {\mathrm{1621}}^1\times {\mathrm{1398451}}^1$

素因数の和:1400078

約数の個数: 12

約数和(自身を含む): 29487758872

約数和(自身を除く): 9085757233

約数列:

[1, 3, 9, 1621, 4863, 14589, 1398451, 4195353, 12586059, 2266889071, 6800667213, 20402001639]

約数ペア:

[(1, 20402001639), (3, 6800667213), (9, 2266889071), (1621, 12586059), (4863, 4195353), (14589, 1398451)]