21428536

素因数分解:

$2^3\times {\mathrm{53}}^1\times {\mathrm{50539}}^1$

素因数の和:50598

約数の個数: 16

約数和(自身を含む): 40937400

約数和(自身を除く): 19508864

約数列:

[1, 2, 4, 8, 53, 106, 212, 424, 50539, 101078, 202156, 404312, 2678567, 5357134, 10714268, 21428536]

約数ペア:

[(1, 21428536), (2, 10714268), (4, 5357134), (8, 2678567), (53, 404312), (106, 202156), (212, 101078), (424, 50539)]