208127979

素因数分解:

$3^2\times {\mathrm{53}}^1\times {\mathrm{109}}^1\times {\mathrm{4003}}^1$

素因数の和:4171

約数の個数: 24

約数和(自身を含む): 309188880

約数和(自身を除く): 101060901

約数列:

[1, 3, 9, 53, 109, 159, 327, 477, 981, 4003, 5777, 12009, 17331, 36027, 51993, 212159, 436327, 636477, 1308981, 1909431, 3926943, 23125331, 69375993, 208127979]

約数ペア:

[(1, 208127979), (3, 69375993), (9, 23125331), (53, 3926943), (109, 1909431), (159, 1308981), (327, 636477), (477, 436327), (981, 212159), (4003, 51993), (5777, 36027), (12009, 17331)]