19558851

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{107}}^1\times {\mathrm{109}}^1$

素因数の和:275

約数の個数: 32

約数和(自身を含む): 29272320

約数和(自身を除く): 9713469

約数列:

[1, 3, 13, 39, 43, 107, 109, 129, 321, 327, 559, 1391, 1417, 1677, 4173, 4251, 4601, 4687, 11663, 13803, 14061, 34989, 59813, 60931, 151619, 179439, 182793, 454857, 501509, 1504527, 6519617, 19558851]

約数ペア:

[(1, 19558851), (3, 6519617), (13, 1504527), (39, 501509), (43, 454857), (107, 182793), (109, 179439), (129, 151619), (321, 60931), (327, 59813), (559, 34989), (1391, 14061), (1417, 13803), (1677, 11663), (4173, 4687), (4251, 4601)]