209525547

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{271}}^1\times {\mathrm{3347}}^1$

素因数の和:3639

約数の個数: 32

約数和(自身を含む): 349691904

約数和(自身を除く): 140166357

約数列:

[1, 3, 7, 11, 21, 33, 77, 231, 271, 813, 1897, 2981, 3347, 5691, 8943, 10041, 20867, 23429, 36817, 62601, 70287, 110451, 257719, 773157, 907037, 2721111, 6349259, 9977407, 19047777, 29932221, 69841849, 209525547]

約数ペア:

[(1, 209525547), (3, 69841849), (7, 29932221), (11, 19047777), (21, 9977407), (33, 6349259), (77, 2721111), (231, 907037), (271, 773157), (813, 257719), (1897, 110451), (2981, 70287), (3347, 62601), (5691, 36817), (8943, 23429), (10041, 20867)]