16205121

素因数分解:

$3^2\times {\mathrm{53}}^2\times {\mathrm{641}}^1$

素因数の和:753

約数の個数: 18

約数和(自身を含む): 23894598

約数和(自身を除く): 7689477

約数列:

[1, 3, 9, 53, 159, 477, 641, 1923, 2809, 5769, 8427, 25281, 33973, 101919, 305757, 1800569, 5401707, 16205121]

約数ペア:

[(1, 16205121), (3, 5401707), (9, 1800569), (53, 305757), (159, 101919), (477, 33973), (641, 25281), (1923, 8427), (2809, 5769)]