18087601

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{107}}^1$

素因数の和:205

約数の個数: 32

約数和(自身を含む): 23224320

約数和(自身を除く): 5136719

約数列:

[1, 7, 19, 31, 41, 107, 133, 217, 287, 589, 749, 779, 1271, 2033, 3317, 4123, 4387, 5453, 8897, 14231, 23219, 24149, 30709, 63023, 83353, 135997, 169043, 441161, 583471, 951979, 2583943, 18087601]

約数ペア:

[(1, 18087601), (7, 2583943), (19, 951979), (31, 583471), (41, 441161), (107, 169043), (133, 135997), (217, 83353), (287, 63023), (589, 30709), (749, 24149), (779, 23219), (1271, 14231), (2033, 8897), (3317, 5453), (4123, 4387)]