21211986

素因数分解:

$2^1\times 3^1\times {\mathrm{43}}^1\times {\mathrm{82217}}^1$

素因数の和:82265

約数の個数: 16

約数和(自身を含む): 43411104

約数和(自身を除く): 22199118

約数列:

[1, 2, 3, 6, 43, 86, 129, 258, 82217, 164434, 246651, 493302, 3535331, 7070662, 10605993, 21211986]

約数ペア:

[(1, 21211986), (2, 10605993), (3, 7070662), (6, 3535331), (43, 493302), (86, 246651), (129, 164434), (258, 82217)]