21726621

素因数分解:

$3^2\times 7^1\times {\mathrm{199}}^1\times {\mathrm{1733}}^1$

素因数の和:1945

約数の個数: 24

約数和(自身を含む): 36067200

約数和(自身を除く): 14340579

約数列:

[1, 3, 7, 9, 21, 63, 199, 597, 1393, 1733, 1791, 4179, 5199, 12131, 12537, 15597, 36393, 109179, 344867, 1034601, 2414069, 3103803, 7242207, 21726621]

約数ペア:

[(1, 21726621), (3, 7242207), (7, 3103803), (9, 2414069), (21, 1034601), (63, 344867), (199, 109179), (597, 36393), (1393, 15597), (1733, 12537), (1791, 12131), (4179, 5199)]