21870543

素因数分解:

$3^1\times {\mathrm{127}}^1\times {\mathrm{137}}^1\times {\mathrm{419}}^1$

素因数の和:686

約数の個数: 16

約数和(自身を含む): 29675520

約数和(自身を除く): 7804977

約数列:

[1, 3, 127, 137, 381, 411, 419, 1257, 17399, 52197, 53213, 57403, 159639, 172209, 7290181, 21870543]

約数ペア:

[(1, 21870543), (3, 7290181), (127, 172209), (137, 159639), (381, 57403), (411, 53213), (419, 52197), (1257, 17399)]