15127721

素因数分解:

$7^2\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{433}}^1$

素因数の和:501

約数の個数: 24

約数和(自身を含む): 18998784

約数和(自身を除く): 3871063

約数列:

[1, 7, 23, 31, 49, 161, 217, 433, 713, 1127, 1519, 3031, 4991, 9959, 13423, 21217, 34937, 69713, 93961, 308729, 487991, 657727, 2161103, 15127721]

約数ペア:

[(1, 15127721), (7, 2161103), (23, 657727), (31, 487991), (49, 308729), (161, 93961), (217, 69713), (433, 34937), (713, 21217), (1127, 13423), (1519, 9959), (3031, 4991)]