19661421

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{504139}}^1$

素因数の和:504155

約数の個数: 8

約数和(自身を含む): 28231840

約数和(自身を除く): 8570419

約数列:

[1, 3, 13, 39, 504139, 1512417, 6553807, 19661421]

約数ペア:

[(1, 19661421), (3, 6553807), (13, 1512417), (39, 504139)]