21001773

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{349}}^1\times {\mathrm{1543}}^1$

素因数の和:1908

約数の個数: 16

約数和(自身を含む): 30262400

約数和(自身を除く): 9260627

約数列:

[1, 3, 13, 39, 349, 1047, 1543, 4537, 4629, 13611, 20059, 60177, 538507, 1615521, 7000591, 21001773]

約数ペア:

[(1, 21001773), (3, 7000591), (13, 1615521), (39, 538507), (349, 60177), (1047, 20059), (1543, 13611), (4537, 4629)]