21001863

素因数分解:

$3^1\times {\mathrm{127}}^1\times {\mathrm{199}}^1\times {\mathrm{277}}^1$

素因数の和:606

約数の個数: 16

約数和(自身を含む): 28467200

約数和(自身を除く): 7465337

約数列:

[1, 3, 127, 199, 277, 381, 597, 831, 25273, 35179, 55123, 75819, 105537, 165369, 7000621, 21001863]

約数ペア:

[(1, 21001863), (3, 7000621), (127, 165369), (199, 105537), (277, 75819), (381, 55123), (597, 35179), (831, 25273)]