21269434

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{10753}}^1$

素因数の和:10821

約数の個数: 16

約数和(自身を含む): 34068672

約数和(自身を除く): 12799238

約数列:

[1, 2, 23, 43, 46, 86, 989, 1978, 10753, 21506, 247319, 462379, 494638, 924758, 10634717, 21269434]

約数ペア:

[(1, 21269434), (2, 10634717), (23, 924758), (43, 494638), (46, 462379), (86, 247319), (989, 21506), (1978, 10753)]