208405911

素因数分解:

$3^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{53}}^1\times {\mathrm{4567}}^1$

素因数の和:4671

約数の個数: 32

約数和(自身を含む): 331527168

約数和(自身を除く): 123121257

約数列:

[1, 3, 7, 21, 41, 53, 123, 159, 287, 371, 861, 1113, 2173, 4567, 6519, 13701, 15211, 31969, 45633, 95907, 187247, 242051, 561741, 726153, 1310729, 1694357, 3932187, 5083071, 9924091, 29772273, 69468637, 208405911]

約数ペア:

[(1, 208405911), (3, 69468637), (7, 29772273), (21, 9924091), (41, 5083071), (53, 3932187), (123, 1694357), (159, 1310729), (287, 726153), (371, 561741), (861, 242051), (1113, 187247), (2173, 95907), (4567, 45633), (6519, 31969), (13701, 15211)]