12723981

素因数分解:

$3^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{47}}^1\times {\mathrm{71}}^1$

素因数の和:193

約数の個数: 32

約数和(自身を含む): 18579456

約数和(自身を除く): 5855475

約数列:

[1, 3, 31, 41, 47, 71, 93, 123, 141, 213, 1271, 1457, 1927, 2201, 2911, 3337, 3813, 4371, 5781, 6603, 8733, 10011, 59737, 90241, 103447, 136817, 179211, 270723, 310341, 410451, 4241327, 12723981]

約数ペア:

[(1, 12723981), (3, 4241327), (31, 410451), (41, 310341), (47, 270723), (71, 179211), (93, 136817), (123, 103447), (141, 90241), (213, 59737), (1271, 10011), (1457, 8733), (1927, 6603), (2201, 5781), (2911, 4371), (3337, 3813)]