208198767

素因数分解:

$3^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{71}}^1\times {\mathrm{2971}}^1$

素因数の和:3099

約数の個数: 32

約数和(自身を含む): 328679424

約数和(自身を除く): 120480657

約数列:

[1, 3, 7, 21, 47, 71, 141, 213, 329, 497, 987, 1491, 2971, 3337, 8913, 10011, 20797, 23359, 62391, 70077, 139637, 210941, 418911, 632823, 977459, 1476587, 2932377, 4429761, 9914227, 29742681, 69399589, 208198767]

約数ペア:

[(1, 208198767), (3, 69399589), (7, 29742681), (21, 9914227), (47, 4429761), (71, 2932377), (141, 1476587), (213, 977459), (329, 632823), (497, 418911), (987, 210941), (1491, 139637), (2971, 70077), (3337, 62391), (8913, 23359), (10011, 20797)]