20477779

素因数分解:

$7^1\times {\mathrm{59}}^1\times {\mathrm{179}}^1\times {\mathrm{277}}^1$

素因数の和:522

約数の個数: 16

約数和(自身を含む): 24019200

約数和(自身を除く): 3541421

約数列:

[1, 7, 59, 179, 277, 413, 1253, 1939, 10561, 16343, 49583, 73927, 114401, 347081, 2925397, 20477779]

約数ペア:

[(1, 20477779), (7, 2925397), (59, 347081), (179, 114401), (277, 73927), (413, 49583), (1253, 16343), (1939, 10561)]