21897759

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{439}}^1\times {\mathrm{1279}}^1$

素因数の和:1734

約数の個数: 16

約数和(自身を含む): 31539200

約数和(自身を除く): 9641441

約数列:

[1, 3, 13, 39, 439, 1279, 1317, 3837, 5707, 16627, 17121, 49881, 561481, 1684443, 7299253, 21897759]

約数ペア:

[(1, 21897759), (3, 7299253), (13, 1684443), (39, 561481), (439, 49881), (1279, 17121), (1317, 16627), (3837, 5707)]