278523399

素因数分解:

$3^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{7489}}^1$

素因数の和:7540

約数の個数: 48

約数和(自身を含む): 491823360

約数和(自身を除く): 213299961

約数列:

[1, 3, 7, 11, 21, 23, 33, 49, 69, 77, 147, 161, 231, 253, 483, 539, 759, 1127, 1617, 1771, 3381, 5313, 7489, 12397, 22467, 37191, 52423, 82379, 157269, 172247, 247137, 366961, 516741, 576653, 1100883, 1205729, 1729959, 1894717, 3617187, 4036571, 5684151, 8440103, 12109713, 13263019, 25320309, 39789057, 92841133, 278523399]

約数ペア:

[(1, 278523399), (3, 92841133), (7, 39789057), (11, 25320309), (21, 13263019), (23, 12109713), (33, 8440103), (49, 5684151), (69, 4036571), (77, 3617187), (147, 1894717), (161, 1729959), (231, 1205729), (253, 1100883), (483, 576653), (539, 516741), (759, 366961), (1127, 247137), (1617, 172247), (1771, 157269), (3381, 82379), (5313, 52423), (7489, 37191), (12397, 22467)]