20199709957

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{223}}^1\times {\mathrm{18149}}^1$

素因数の和:18433

約数の個数: 32

約数和(自身を含む): 24979046400

約数和(自身を除く): 4779336443

約数列:

[1, 7, 23, 31, 161, 217, 223, 713, 1561, 4991, 5129, 6913, 18149, 35903, 48391, 127043, 158999, 417427, 562619, 1112993, 2921989, 3938333, 4047227, 12940237, 28330589, 90581659, 93086221, 125464037, 651603547, 878248259, 2885672851, 20199709957]

約数ペア:

[(1, 20199709957), (7, 2885672851), (23, 878248259), (31, 651603547), (161, 125464037), (217, 93086221), (223, 90581659), (713, 28330589), (1561, 12940237), (4991, 4047227), (5129, 3938333), (6913, 2921989), (18149, 1112993), (35903, 562619), (48391, 417427), (127043, 158999)]