28215978

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{67}}^1\times {\mathrm{271}}^1$

素因数の和:387

約数の個数: 64

約数和(自身を含む): 67473408

約数和(自身を除く): 39257430

約数列:

[1, 2, 3, 6, 7, 14, 21, 37, 42, 67, 74, 111, 134, 201, 222, 259, 271, 402, 469, 518, 542, 777, 813, 938, 1407, 1554, 1626, 1897, 2479, 2814, 3794, 4958, 5691, 7437, 10027, 11382, 14874, 17353, 18157, 20054, 30081, 34706, 36314, 52059, 54471, 60162, 70189, 104118, 108942, 127099, 140378, 210567, 254198, 381297, 421134, 671809, 762594, 1343618, 2015427, 4030854, 4702663, 9405326, 14107989, 28215978]

約数ペア:

[(1, 28215978), (2, 14107989), (3, 9405326), (6, 4702663), (7, 4030854), (14, 2015427), (21, 1343618), (37, 762594), (42, 671809), (67, 421134), (74, 381297), (111, 254198), (134, 210567), (201, 140378), (222, 127099), (259, 108942), (271, 104118), (402, 70189), (469, 60162), (518, 54471), (542, 52059), (777, 36314), (813, 34706), (938, 30081), (1407, 20054), (1554, 18157), (1626, 17353), (1897, 14874), (2479, 11382), (2814, 10027), (3794, 7437), (4958, 5691)]