3957863

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1$

素因数の和:135

約数の個数: 32

約数和(自身を含む): 5332992

約数和(自身を除く): 1375129

約数列:

[1, 7, 13, 23, 31, 61, 91, 161, 217, 299, 403, 427, 713, 793, 1403, 1891, 2093, 2821, 4991, 5551, 9269, 9821, 13237, 18239, 24583, 43493, 64883, 127673, 172081, 304451, 565409, 3957863]

約数ペア:

[(1, 3957863), (7, 565409), (13, 304451), (23, 172081), (31, 127673), (61, 64883), (91, 43493), (161, 24583), (217, 18239), (299, 13237), (403, 9821), (427, 9269), (713, 5551), (793, 4991), (1403, 2821), (1891, 2093)]