28991589

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{20431}}^1$

素因数の和:20488

約数の個数: 16

約数和(自身を含む): 43152384

約数和(自身を除く): 14160795

約数列:

[1, 3, 11, 33, 43, 129, 473, 1419, 20431, 61293, 224741, 674223, 878533, 2635599, 9663863, 28991589]

約数ペア:

[(1, 28991589), (3, 9663863), (11, 2635599), (33, 878533), (43, 674223), (129, 224741), (473, 61293), (1419, 20431)]