21782049

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{487}}^1\times {\mathrm{877}}^1$

素因数の和:1384

約数の個数: 16

約数和(自身を含む): 30849408

約数和(自身を除く): 9067359

約数列:

[1, 3, 17, 51, 487, 877, 1461, 2631, 8279, 14909, 24837, 44727, 427099, 1281297, 7260683, 21782049]

約数ペア:

[(1, 21782049), (3, 7260683), (17, 1281297), (51, 427099), (487, 44727), (877, 24837), (1461, 14909), (2631, 8279)]