128487519

素因数分解:

$3^3\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{73}}^2$

素因数の和:221

約数の個数: 48

約数和(自身を含む): 207475200

約数和(自身を除く): 78987681

約数列:

[1, 3, 9, 19, 27, 47, 57, 73, 141, 171, 219, 423, 513, 657, 893, 1269, 1387, 1971, 2679, 3431, 4161, 5329, 8037, 10293, 12483, 15987, 24111, 30879, 37449, 47961, 65189, 92637, 101251, 143883, 195567, 250463, 303753, 586701, 751389, 911259, 1760103, 2254167, 2733777, 4758797, 6762501, 14276391, 42829173, 128487519]

約数ペア:

[(1, 128487519), (3, 42829173), (9, 14276391), (19, 6762501), (27, 4758797), (47, 2733777), (57, 2254167), (73, 1760103), (141, 911259), (171, 751389), (219, 586701), (423, 303753), (513, 250463), (657, 195567), (893, 143883), (1269, 101251), (1387, 92637), (1971, 65189), (2679, 47961), (3431, 37449), (4161, 30879), (5329, 24111), (8037, 15987), (10293, 12483)]