21668207615

素因数分解:

$5^1\times {\mathrm{43}}^1\times {\mathrm{131}}^1\times {\mathrm{173}}^1\times {\mathrm{4447}}^1$

素因数の和:4799

約数の個数: 32

約数和(自身を含む): 26970679296

約数和(自身を除く): 5302471681

約数列:

[1, 5, 43, 131, 173, 215, 655, 865, 4447, 5633, 7439, 22235, 22663, 28165, 37195, 113315, 191221, 582557, 769331, 956105, 974509, 2912785, 3846655, 4872545, 25049951, 33081233, 100782361, 125249755, 165406165, 503911805, 4333641523, 21668207615]

約数ペア:

[(1, 21668207615), (5, 4333641523), (43, 503911805), (131, 165406165), (173, 125249755), (215, 100782361), (655, 33081233), (865, 25049951), (4447, 4872545), (5633, 3846655), (7439, 2912785), (22235, 974509), (22663, 956105), (28165, 769331), (37195, 582557), (113315, 191221)]