40721553

素因数分解:

$3^2\times {\mathrm{71}}^1\times {\mathrm{63727}}^1$

素因数の和:63804

約数の個数: 12

約数和(自身を含む): 59649408

約数和(自身を除く): 18927855

約数列:

[1, 3, 9, 71, 213, 639, 63727, 191181, 573543, 4524617, 13573851, 40721553]

約数ペア:

[(1, 40721553), (3, 13573851), (9, 4524617), (71, 573543), (213, 191181), (639, 63727)]