12961705

素因数分解:

$5^1\times {\mathrm{19}}^2\times {\mathrm{43}}^1\times {\mathrm{167}}^1$

素因数の和:253

約数の個数: 24

約数和(自身を含む): 16898112

約数和(自身を除く): 3936407

約数列:

[1, 5, 19, 43, 95, 167, 215, 361, 817, 835, 1805, 3173, 4085, 7181, 15523, 15865, 35905, 60287, 77615, 136439, 301435, 682195, 2592341, 12961705]

約数ペア:

[(1, 12961705), (5, 2592341), (19, 682195), (43, 301435), (95, 136439), (167, 77615), (215, 60287), (361, 35905), (817, 15865), (835, 15523), (1805, 7181), (3173, 4085)]