261778041

素因数分解:

$3^3\times 7^2\times {\mathrm{29}}^1\times {\mathrm{6823}}^1$

素因数の和:6875

約数の個数: 48

約数和(自身を含む): 466761600

約数和(自身を除く): 204983559

約数列:

[1, 3, 7, 9, 21, 27, 29, 49, 63, 87, 147, 189, 203, 261, 441, 609, 783, 1323, 1421, 1827, 4263, 5481, 6823, 12789, 20469, 38367, 47761, 61407, 143283, 184221, 197867, 334327, 429849, 593601, 1002981, 1289547, 1385069, 1780803, 3008943, 4155207, 5342409, 9026829, 9695483, 12465621, 29086449, 37396863, 87259347, 261778041]

約数ペア:

[(1, 261778041), (3, 87259347), (7, 37396863), (9, 29086449), (21, 12465621), (27, 9695483), (29, 9026829), (49, 5342409), (63, 4155207), (87, 3008943), (147, 1780803), (189, 1385069), (203, 1289547), (261, 1002981), (441, 593601), (609, 429849), (783, 334327), (1323, 197867), (1421, 184221), (1827, 143283), (4263, 61407), (5481, 47761), (6823, 38367), (12789, 20469)]