21856518

素因数分解:

$2^1\times 3^2\times {\mathrm{769}}^1\times {\mathrm{1579}}^1$

素因数の和:2356

約数の個数: 24

約数和(自身を含む): 47447400

約数和(自身を除く): 25590882

約数列:

[1, 2, 3, 6, 9, 18, 769, 1538, 1579, 2307, 3158, 4614, 4737, 6921, 9474, 13842, 14211, 28422, 1214251, 2428502, 3642753, 7285506, 10928259, 21856518]

約数ペア:

[(1, 21856518), (2, 10928259), (3, 7285506), (6, 3642753), (9, 2428502), (18, 1214251), (769, 28422), (1538, 14211), (1579, 13842), (2307, 9474), (3158, 6921), (4614, 4737)]