21453712

素因数分解:

$2^4\times 7^1\times {\mathrm{191551}}^1$

素因数の和:191566

約数の個数: 20

約数和(自身を含む): 47504896

約数和(自身を除く): 26051184

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 191551, 383102, 766204, 1340857, 1532408, 2681714, 3064816, 5363428, 10726856, 21453712]

約数ペア:

[(1, 21453712), (2, 10726856), (4, 5363428), (7, 3064816), (8, 2681714), (14, 1532408), (16, 1340857), (28, 766204), (56, 383102), (112, 191551)]