209218555

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{6863}}^1$

素因数の和:6955

約数の個数: 32

約数和(自身を含む): 313657344

約数和(自身を除く): 104438789

約数列:

[1, 5, 7, 13, 35, 65, 67, 91, 335, 455, 469, 871, 2345, 4355, 6097, 6863, 30485, 34315, 48041, 89219, 240205, 446095, 459821, 624533, 2299105, 3122665, 3218747, 5977673, 16093735, 29888365, 41843711, 209218555]

約数ペア:

[(1, 209218555), (5, 41843711), (7, 29888365), (13, 16093735), (35, 5977673), (65, 3218747), (67, 3122665), (91, 2299105), (335, 624533), (455, 459821), (469, 446095), (871, 240205), (2345, 89219), (4355, 48041), (6097, 34315), (6863, 30485)]