21164706

素因数分解:

$2^1\times 3^3\times {\mathrm{391939}}^1$

素因数の和:391950

約数の個数: 16

約数和(自身を含む): 47032800

約数和(自身を除く): 25868094

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 391939, 783878, 1175817, 2351634, 3527451, 7054902, 10582353, 21164706]

約数ペア:

[(1, 21164706), (2, 10582353), (3, 7054902), (6, 3527451), (9, 2351634), (18, 1175817), (27, 783878), (54, 391939)]