51790257

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{83}}^1\times {\mathrm{89}}^1$

素因数の和:238

約数の個数: 48

約数和(自身を含む): 82555200

約数和(自身を除く): 30764943

約数列:

[1, 3, 9, 19, 41, 57, 83, 89, 123, 171, 249, 267, 369, 747, 779, 801, 1577, 1691, 2337, 3403, 3649, 4731, 5073, 7011, 7387, 10209, 10947, 14193, 15219, 22161, 30627, 32841, 64657, 66483, 69331, 140353, 193971, 207993, 302867, 421059, 581913, 623979, 908601, 1263177, 2725803, 5754473, 17263419, 51790257]

約数ペア:

[(1, 51790257), (3, 17263419), (9, 5754473), (19, 2725803), (41, 1263177), (57, 908601), (83, 623979), (89, 581913), (123, 421059), (171, 302867), (249, 207993), (267, 193971), (369, 140353), (747, 69331), (779, 66483), (801, 64657), (1577, 32841), (1691, 30627), (2337, 22161), (3403, 15219), (3649, 14193), (4731, 10947), (5073, 10209), (7011, 7387)]