21725956

素因数分解:

$2^2\times 7^1\times {\mathrm{37}}^1\times {\mathrm{67}}^1\times {\mathrm{313}}^1$

素因数の和:428

約数の個数: 48

約数和(自身を含む): 45437056

約数和(自身を除く): 23711100

約数列:

[1, 2, 4, 7, 14, 28, 37, 67, 74, 134, 148, 259, 268, 313, 469, 518, 626, 938, 1036, 1252, 1876, 2191, 2479, 4382, 4958, 8764, 9916, 11581, 17353, 20971, 23162, 34706, 41942, 46324, 69412, 81067, 83884, 146797, 162134, 293594, 324268, 587188, 775927, 1551854, 3103708, 5431489, 10862978, 21725956]

約数ペア:

[(1, 21725956), (2, 10862978), (4, 5431489), (7, 3103708), (14, 1551854), (28, 775927), (37, 587188), (67, 324268), (74, 293594), (134, 162134), (148, 146797), (259, 83884), (268, 81067), (313, 69412), (469, 46324), (518, 41942), (626, 34706), (938, 23162), (1036, 20971), (1252, 17353), (1876, 11581), (2191, 9916), (2479, 8764), (4382, 4958)]