21521322

素因数分解:

$2^1\times 3^3\times {\mathrm{398543}}^1$

素因数の和:398554

約数の個数: 16

約数和(自身を含む): 47825280

約数和(自身を除く): 26303958

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 398543, 797086, 1195629, 2391258, 3586887, 7173774, 10760661, 21521322]

約数ペア:

[(1, 21521322), (2, 10760661), (3, 7173774), (6, 3586887), (9, 2391258), (18, 1195629), (27, 797086), (54, 398543)]