221771303

素因数分解:

${\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{107}}^1\times {\mathrm{139}}^1$

素因数の和:327

約数の個数: 32

約数和(自身を含む): 257402880

約数和(自身を除く): 35631577

約数列:

[1, 13, 31, 37, 107, 139, 403, 481, 1147, 1391, 1807, 3317, 3959, 4309, 5143, 14873, 14911, 43121, 51467, 56017, 66859, 122729, 159433, 193349, 461063, 550301, 1595477, 2072629, 5993819, 7153913, 17059331, 221771303]

約数ペア:

[(1, 221771303), (13, 17059331), (31, 7153913), (37, 5993819), (107, 2072629), (139, 1595477), (403, 550301), (481, 461063), (1147, 193349), (1391, 159433), (1807, 122729), (3317, 66859), (3959, 56017), (4309, 51467), (5143, 43121), (14873, 14911)]