13321581

素因数分解:

$3^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{6971}}^1$

素因数の和:7001

約数の個数: 24

約数和(自身を含む): 22254624

約数和(自身を除く): 8933043

約数列:

[1, 3, 7, 13, 21, 39, 49, 91, 147, 273, 637, 1911, 6971, 20913, 48797, 90623, 146391, 271869, 341579, 634361, 1024737, 1903083, 4440527, 13321581]

約数ペア:

[(1, 13321581), (3, 4440527), (7, 1903083), (13, 1024737), (21, 634361), (39, 341579), (49, 271869), (91, 146391), (147, 90623), (273, 48797), (637, 20913), (1911, 6971)]