19799185

素因数分解:

$5^1\times 7^2\times {\mathrm{211}}^1\times {\mathrm{383}}^1$

素因数の和:613

約数の個数: 24

約数和(自身を含む): 27841536

約数和(自身を除く): 8042351

約数列:

[1, 5, 7, 35, 49, 211, 245, 383, 1055, 1477, 1915, 2681, 7385, 10339, 13405, 18767, 51695, 80813, 93835, 404065, 565691, 2828455, 3959837, 19799185]

約数ペア:

[(1, 19799185), (5, 3959837), (7, 2828455), (35, 565691), (49, 404065), (211, 93835), (245, 80813), (383, 51695), (1055, 18767), (1477, 13405), (1915, 10339), (2681, 7385)]