20338353

素因数分解:

$3^2\times 7^1\times {\mathrm{449}}^1\times {\mathrm{719}}^1$

素因数の和:1181

約数の個数: 24

約数和(自身を含む): 33696000

約数和(自身を除く): 13357647

約数列:

[1, 3, 7, 9, 21, 63, 449, 719, 1347, 2157, 3143, 4041, 5033, 6471, 9429, 15099, 28287, 45297, 322831, 968493, 2259817, 2905479, 6779451, 20338353]

約数ペア:

[(1, 20338353), (3, 6779451), (7, 2905479), (9, 2259817), (21, 968493), (63, 322831), (449, 45297), (719, 28287), (1347, 15099), (2157, 9429), (3143, 6471), (4041, 5033)]