21161418

素因数分解:

$2^1\times 3^1\times {\mathrm{43}}^1\times {\mathrm{82021}}^1$

素因数の和:82069

約数の個数: 16

約数和(自身を含む): 43307616

約数和(自身を除く): 22146198

約数列:

[1, 2, 3, 6, 43, 86, 129, 258, 82021, 164042, 246063, 492126, 3526903, 7053806, 10580709, 21161418]

約数ペア:

[(1, 21161418), (2, 10580709), (3, 7053806), (6, 3526903), (43, 492126), (86, 246063), (129, 164042), (258, 82021)]