1231155

素因数分解:

$3^2\times 5^1\times {\mathrm{109}}^1\times {\mathrm{251}}^1$

素因数の和:371

約数の個数: 24

約数和(自身を含む): 2162160

約数和(自身を除く): 931005

約数列:

[1, 3, 5, 9, 15, 45, 109, 251, 327, 545, 753, 981, 1255, 1635, 2259, 3765, 4905, 11295, 27359, 82077, 136795, 246231, 410385, 1231155]

約数ペア:

[(1, 1231155), (3, 410385), (5, 246231), (9, 136795), (15, 82077), (45, 27359), (109, 11295), (251, 4905), (327, 3765), (545, 2259), (753, 1635), (981, 1255)]