721975329

素因数分解:

$3^3\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{73}}^1\times {\mathrm{743}}^1$

素因数の和:871

約数の個数: 64

約数和(自身を含む): 1189209600

約数和(自身を除く): 467234271

約数列:

[1, 3, 9, 17, 27, 29, 51, 73, 87, 153, 219, 261, 459, 493, 657, 743, 783, 1241, 1479, 1971, 2117, 2229, 3723, 4437, 6351, 6687, 11169, 12631, 13311, 19053, 20061, 21547, 33507, 35989, 37893, 54239, 57159, 64641, 107967, 113679, 162717, 193923, 323901, 341037, 366299, 488151, 581769, 922063, 971703, 1098897, 1464453, 1572931, 2766189, 3296691, 4718793, 8298567, 9890073, 14156379, 24895701, 26739827, 42469137, 80219481, 240658443, 721975329]

約数ペア:

[(1, 721975329), (3, 240658443), (9, 80219481), (17, 42469137), (27, 26739827), (29, 24895701), (51, 14156379), (73, 9890073), (87, 8298567), (153, 4718793), (219, 3296691), (261, 2766189), (459, 1572931), (493, 1464453), (657, 1098897), (743, 971703), (783, 922063), (1241, 581769), (1479, 488151), (1971, 366299), (2117, 341037), (2229, 323901), (3723, 193923), (4437, 162717), (6351, 113679), (6687, 107967), (11169, 64641), (12631, 57159), (13311, 54239), (19053, 37893), (20061, 35989), (21547, 33507)]