20865453

素因数分解:

$3^1\times 7^1\times {\mathrm{83}}^1\times {\mathrm{11971}}^1$

素因数の和:12064

約数の個数: 16

約数和(自身を含む): 32180736

約数和(自身を除く): 11315283

約数列:

[1, 3, 7, 21, 83, 249, 581, 1743, 11971, 35913, 83797, 251391, 993593, 2980779, 6955151, 20865453]

約数ペア:

[(1, 20865453), (3, 6955151), (7, 2980779), (21, 993593), (83, 251391), (249, 83797), (581, 35913), (1743, 11971)]