28209937

素因数分解:

$7^2\times {\mathrm{23}}^1\times {\mathrm{25031}}^1$

素因数の和:25068

約数の個数: 12

約数和(自身を含む): 34243776

約数和(自身を除く): 6033839

約数列:

[1, 7, 23, 49, 161, 1127, 25031, 175217, 575713, 1226519, 4029991, 28209937]

約数ペア:

[(1, 28209937), (7, 4029991), (23, 1226519), (49, 575713), (161, 175217), (1127, 25031)]