9977009

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{1999}}^1$

素因数の和:2060

約数の個数: 16

約数和(自身を含む): 12288000

約数和(自身を除く): 2310991

約数列:

[1, 7, 23, 31, 161, 217, 713, 1999, 4991, 13993, 45977, 61969, 321839, 433783, 1425287, 9977009]

約数ペア:

[(1, 9977009), (7, 1425287), (23, 433783), (31, 321839), (161, 61969), (217, 45977), (713, 13993), (1999, 4991)]