217049985

素因数分解:

$3^2\times 5^1\times {\mathrm{127}}^1\times {\mathrm{163}}^1\times {\mathrm{233}}^1$

素因数の和:534

約数の個数: 48

約数和(自身を含む): 383145984

約数和(自身を除く): 166095999

約数列:

[1, 3, 5, 9, 15, 45, 127, 163, 233, 381, 489, 635, 699, 815, 1143, 1165, 1467, 1905, 2097, 2445, 3495, 5715, 7335, 10485, 20701, 29591, 37979, 62103, 88773, 103505, 113937, 147955, 186309, 189895, 266319, 310515, 341811, 443865, 569685, 931545, 1331595, 1709055, 4823333, 14469999, 24116665, 43409997, 72349995, 217049985]

約数ペア:

[(1, 217049985), (3, 72349995), (5, 43409997), (9, 24116665), (15, 14469999), (45, 4823333), (127, 1709055), (163, 1331595), (233, 931545), (381, 569685), (489, 443865), (635, 341811), (699, 310515), (815, 266319), (1143, 189895), (1165, 186309), (1467, 147955), (1905, 113937), (2097, 103505), (2445, 88773), (3495, 62103), (5715, 37979), (7335, 29591), (10485, 20701)]