21389329

素因数分解:

${\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{79}}^1\times {\mathrm{353}}^1$

素因数の和:504

約数の個数: 16

約数和(自身を含む): 23788800

約数和(自身を除く): 2399471

約数列:

[1, 13, 59, 79, 353, 767, 1027, 4589, 4661, 20827, 27887, 60593, 270751, 362531, 1645333, 21389329]

約数ペア:

[(1, 21389329), (13, 1645333), (59, 362531), (79, 270751), (353, 60593), (767, 27887), (1027, 20827), (4589, 4661)]