208347986

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{73}}^1\times {\mathrm{431}}^1$

素因数の和:567

約数の個数: 64

約数和(自身を含む): 405098496

約数和(自身を除く): 196750510

約数列:

[1, 2, 7, 11, 14, 22, 43, 73, 77, 86, 146, 154, 301, 431, 473, 511, 602, 803, 862, 946, 1022, 1606, 3017, 3139, 3311, 4741, 5621, 6034, 6278, 6622, 9482, 11242, 18533, 21973, 31463, 33187, 34529, 37066, 43946, 62926, 66374, 69058, 129731, 203863, 220241, 241703, 259462, 346093, 407726, 440482, 483406, 692186, 1352909, 1427041, 2422651, 2705818, 2854082, 4845302, 9470363, 14881999, 18940726, 29763998, 104173993, 208347986]

約数ペア:

[(1, 208347986), (2, 104173993), (7, 29763998), (11, 18940726), (14, 14881999), (22, 9470363), (43, 4845302), (73, 2854082), (77, 2705818), (86, 2422651), (146, 1427041), (154, 1352909), (301, 692186), (431, 483406), (473, 440482), (511, 407726), (602, 346093), (803, 259462), (862, 241703), (946, 220241), (1022, 203863), (1606, 129731), (3017, 69058), (3139, 66374), (3311, 62926), (4741, 43946), (5621, 37066), (6034, 34529), (6278, 33187), (6622, 31463), (9482, 21973), (11242, 18533)]