31721522

素因数分解:

$2^1\times 7^2\times {\mathrm{47}}^1\times {\mathrm{71}}^1\times {\mathrm{97}}^1$

素因数の和:231

約数の個数: 48

約数和(自身を含む): 57915648

約数和(自身を除く): 26194126

約数列:

[1, 2, 7, 14, 47, 49, 71, 94, 97, 98, 142, 194, 329, 497, 658, 679, 994, 1358, 2303, 3337, 3479, 4559, 4606, 4753, 6674, 6887, 6958, 9118, 9506, 13774, 23359, 31913, 46718, 48209, 63826, 96418, 163513, 223391, 323689, 327026, 337463, 446782, 647378, 674926, 2265823, 4531646, 15860761, 31721522]

約数ペア:

[(1, 31721522), (2, 15860761), (7, 4531646), (14, 2265823), (47, 674926), (49, 647378), (71, 446782), (94, 337463), (97, 327026), (98, 323689), (142, 223391), (194, 163513), (329, 96418), (497, 63826), (658, 48209), (679, 46718), (994, 31913), (1358, 23359), (2303, 13774), (3337, 9506), (3479, 9118), (4559, 6958), (4606, 6887), (4753, 6674)]