21002598

素因数分解:

$2^1\times 3^3\times {\mathrm{388937}}^1$

素因数の和:388948

約数の個数: 16

約数和(自身を含む): 46672560

約数和(自身を除く): 25669962

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 388937, 777874, 1166811, 2333622, 3500433, 7000866, 10501299, 21002598]

約数ペア:

[(1, 21002598), (2, 10501299), (3, 7000866), (6, 3500433), (9, 2333622), (18, 1166811), (27, 777874), (54, 388937)]