21577996874

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{81120289}}^1$

素因数の和:81120317

約数の個数: 16

約数和(自身を含む): 38937739200

約数和(自身を除く): 17359742326

約数列:

[1, 2, 7, 14, 19, 38, 133, 266, 81120289, 162240578, 567842023, 1135684046, 1541285491, 3082570982, 10788998437, 21577996874]

約数ペア:

[(1, 21577996874), (2, 10788998437), (7, 3082570982), (14, 1541285491), (19, 1135684046), (38, 567842023), (133, 162240578), (266, 81120289)]