18889629

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{641}}^1$

素因数の和:721

約数の個数: 32

約数和(自身を含む): 29583360

約数和(自身を除く): 10693731

約数列:

[1, 3, 11, 19, 33, 47, 57, 141, 209, 517, 627, 641, 893, 1551, 1923, 2679, 7051, 9823, 12179, 21153, 29469, 30127, 36537, 90381, 133969, 331397, 401907, 572413, 994191, 1717239, 6296543, 18889629]

約数ペア:

[(1, 18889629), (3, 6296543), (11, 1717239), (19, 994191), (33, 572413), (47, 401907), (57, 331397), (141, 133969), (209, 90381), (517, 36537), (627, 30127), (641, 29469), (893, 21153), (1551, 12179), (1923, 9823), (2679, 7051)]