21040545

素因数分解:

$3^1\times 5^1\times {\mathrm{43}}^1\times {\mathrm{32621}}^1$

素因数の和:32672

約数の個数: 16

約数和(自身を含む): 34448832

約数和(自身を除く): 13408287

約数列:

[1, 3, 5, 15, 43, 129, 215, 645, 32621, 97863, 163105, 489315, 1402703, 4208109, 7013515, 21040545]

約数ペア:

[(1, 21040545), (3, 7013515), (5, 4208109), (15, 1402703), (43, 489315), (129, 163105), (215, 97863), (645, 32621)]