21704319

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{26501}}^1$

素因数の和:26527

約数の個数: 24

約数和(自身を含む): 38586912

約数和(自身を除く): 16882593

約数列:

[1, 3, 7, 9, 13, 21, 39, 63, 91, 117, 273, 819, 26501, 79503, 185507, 238509, 344513, 556521, 1033539, 1669563, 2411591, 3100617, 7234773, 21704319]

約数ペア:

[(1, 21704319), (3, 7234773), (7, 3100617), (9, 2411591), (13, 1669563), (21, 1033539), (39, 556521), (63, 344513), (91, 238509), (117, 185507), (273, 79503), (819, 26501)]