806780821

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{41}}^2\times {\mathrm{271}}^1$

素因数の和:394

約数の個数: 48

約数和(自身を含む): 1079783424

約数和(自身を除く): 273002603

約数列:

[1, 7, 11, 23, 41, 77, 161, 253, 271, 287, 451, 943, 1681, 1771, 1897, 2981, 3157, 6233, 6601, 10373, 11111, 11767, 18491, 20867, 38663, 43631, 68563, 72611, 77777, 122221, 129437, 255553, 270641, 425293, 455551, 479941, 855547, 1788871, 2811083, 2977051, 3188857, 5011061, 10477673, 19677581, 35077427, 73343711, 115254403, 806780821]

約数ペア:

[(1, 806780821), (7, 115254403), (11, 73343711), (23, 35077427), (41, 19677581), (77, 10477673), (161, 5011061), (253, 3188857), (271, 2977051), (287, 2811083), (451, 1788871), (943, 855547), (1681, 479941), (1771, 455551), (1897, 425293), (2981, 270641), (3157, 255553), (6233, 129437), (6601, 122221), (10373, 77777), (11111, 72611), (11767, 68563), (18491, 43631), (20867, 38663)]