1660538649

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{397}}^1\times {\mathrm{953}}^1$

素因数の和:1390

約数の個数: 64

約数和(自身を含む): 2916034560

約数和(自身を除く): 1255495911

約数列:

[1, 3, 7, 11, 19, 21, 33, 57, 77, 133, 209, 231, 397, 399, 627, 953, 1191, 1463, 2779, 2859, 4367, 4389, 6671, 7543, 8337, 10483, 13101, 18107, 20013, 22629, 30569, 31449, 52801, 54321, 73381, 82973, 91707, 126749, 158403, 199177, 220143, 248919, 378341, 380247, 580811, 597531, 1135023, 1394239, 1742433, 2648387, 4161751, 4182717, 7188479, 7945161, 12485253, 21565437, 29132257, 50319353, 79073269, 87396771, 150958059, 237219807, 553512883, 1660538649]

約数ペア:

[(1, 1660538649), (3, 553512883), (7, 237219807), (11, 150958059), (19, 87396771), (21, 79073269), (33, 50319353), (57, 29132257), (77, 21565437), (133, 12485253), (209, 7945161), (231, 7188479), (397, 4182717), (399, 4161751), (627, 2648387), (953, 1742433), (1191, 1394239), (1463, 1135023), (2779, 597531), (2859, 580811), (4367, 380247), (4389, 378341), (6671, 248919), (7543, 220143), (8337, 199177), (10483, 158403), (13101, 126749), (18107, 91707), (20013, 82973), (22629, 73381), (30569, 54321), (31449, 52801)]