21346712

素因数分解:

$2^3\times {\mathrm{131}}^1\times {\mathrm{20369}}^1$

素因数の和:20506

約数の個数: 16

約数和(自身を含む): 40332600

約数和(自身を除く): 18985888

約数列:

[1, 2, 4, 8, 131, 262, 524, 1048, 20369, 40738, 81476, 162952, 2668339, 5336678, 10673356, 21346712]

約数ペア:

[(1, 21346712), (2, 10673356), (4, 5336678), (8, 2668339), (131, 162952), (262, 81476), (524, 40738), (1048, 20369)]