27856269

素因数分解:

$3^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{79}}^1\times {\mathrm{193}}^1$

素因数の和:314

約数の個数: 48

約数和(自身を含む): 48422400

約数和(自身を除く): 20566131

約数列:

[1, 3, 7, 9, 21, 29, 63, 79, 87, 193, 203, 237, 261, 553, 579, 609, 711, 1351, 1659, 1737, 1827, 2291, 4053, 4977, 5597, 6873, 12159, 15247, 16037, 16791, 20619, 39179, 45741, 48111, 50373, 106729, 117537, 137223, 144333, 320187, 352611, 442163, 960561, 1326489, 3095141, 3979467, 9285423, 27856269]

約数ペア:

[(1, 27856269), (3, 9285423), (7, 3979467), (9, 3095141), (21, 1326489), (29, 960561), (63, 442163), (79, 352611), (87, 320187), (193, 144333), (203, 137223), (237, 117537), (261, 106729), (553, 50373), (579, 48111), (609, 45741), (711, 39179), (1351, 20619), (1659, 16791), (1737, 16037), (1827, 15247), (2291, 12159), (4053, 6873), (4977, 5597)]