21091432

素因数分解:

$2^3\times {\mathrm{167}}^1\times {\mathrm{15787}}^1$

素因数の和:15960

約数の個数: 16

約数和(自身を含む): 39785760

約数和(自身を除く): 18694328

約数列:

[1, 2, 4, 8, 167, 334, 668, 1336, 15787, 31574, 63148, 126296, 2636429, 5272858, 10545716, 21091432]

約数ペア:

[(1, 21091432), (2, 10545716), (4, 5272858), (8, 2636429), (167, 126296), (334, 63148), (668, 31574), (1336, 15787)]