1289406937

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{745753}}^1$

素因数の和:745792

約数の個数: 16

約数和(自身を含む): 1670488960

約数和(自身を除く): 381082023

約数列:

[1, 7, 13, 19, 91, 133, 247, 1729, 745753, 5220271, 9694789, 14169307, 67863523, 99185149, 184200991, 1289406937]

約数ペア:

[(1, 1289406937), (7, 184200991), (13, 99185149), (19, 67863523), (91, 14169307), (133, 9694789), (247, 5220271), (1729, 745753)]