19757283

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{293}}^1$

素因数の和:348

約数の個数: 48

約数和(自身を含む): 34433280

約数和(自身を除く): 14675997

約数列:

[1, 3, 7, 13, 19, 21, 39, 57, 91, 133, 169, 247, 273, 293, 399, 507, 741, 879, 1183, 1729, 2051, 3211, 3549, 3809, 5187, 5567, 6153, 9633, 11427, 16701, 22477, 26663, 38969, 49517, 67431, 72371, 79989, 116907, 148551, 217113, 346619, 506597, 940823, 1039857, 1519791, 2822469, 6585761, 19757283]

約数ペア:

[(1, 19757283), (3, 6585761), (7, 2822469), (13, 1519791), (19, 1039857), (21, 940823), (39, 506597), (57, 346619), (91, 217113), (133, 148551), (169, 116907), (247, 79989), (273, 72371), (293, 67431), (399, 49517), (507, 38969), (741, 26663), (879, 22477), (1183, 16701), (1729, 11427), (2051, 9633), (3211, 6153), (3549, 5567), (3809, 5187)]