254916963

素因数分解:

$3^5\times 7^2\times {\mathrm{79}}^1\times {\mathrm{271}}^1$

素因数の和:379

約数の個数: 72

約数和(自身を含む): 451476480

約数和(自身を除く): 196559517

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 79, 81, 147, 189, 237, 243, 271, 441, 553, 567, 711, 813, 1323, 1659, 1701, 1897, 2133, 2439, 3871, 3969, 4977, 5691, 6399, 7317, 11613, 11907, 13279, 14931, 17073, 19197, 21409, 21951, 34839, 39837, 44793, 51219, 64227, 65853, 104517, 119511, 134379, 149863, 153657, 192681, 313551, 358533, 449589, 460971, 578043, 940653, 1049041, 1075599, 1348767, 1734129, 3147123, 3226797, 4046301, 5202387, 9441369, 12138903, 28324107, 36416709, 84972321, 254916963]

約数ペア:

[(1, 254916963), (3, 84972321), (7, 36416709), (9, 28324107), (21, 12138903), (27, 9441369), (49, 5202387), (63, 4046301), (79, 3226797), (81, 3147123), (147, 1734129), (189, 1348767), (237, 1075599), (243, 1049041), (271, 940653), (441, 578043), (553, 460971), (567, 449589), (711, 358533), (813, 313551), (1323, 192681), (1659, 153657), (1701, 149863), (1897, 134379), (2133, 119511), (2439, 104517), (3871, 65853), (3969, 64227), (4977, 51219), (5691, 44793), (6399, 39837), (7317, 34839), (11613, 21951), (11907, 21409), (13279, 19197), (14931, 17073)]