21132945

素因数分解:

$3^2\times 5^1\times {\mathrm{251}}^1\times {\mathrm{1871}}^1$

素因数の和:2133

約数の個数: 24

約数和(自身を含む): 36796032

約数和(自身を除く): 15663087

約数列:

[1, 3, 5, 9, 15, 45, 251, 753, 1255, 1871, 2259, 3765, 5613, 9355, 11295, 16839, 28065, 84195, 469621, 1408863, 2348105, 4226589, 7044315, 21132945]

約数ペア:

[(1, 21132945), (3, 7044315), (5, 4226589), (9, 2348105), (15, 1408863), (45, 469621), (251, 84195), (753, 28065), (1255, 16839), (1871, 11295), (2259, 9355), (3765, 5613)]