21000657650

素因数分解:

$2^1\times 5^2\times 7^2\times {\mathrm{59}}^1\times {\mathrm{145283}}^1$

素因数の和:145368

約数の個数: 72

約数和(自身を含む): 46209029040

約数和(自身を除く): 25208371390

約数列:

[1, 2, 5, 7, 10, 14, 25, 35, 49, 50, 59, 70, 98, 118, 175, 245, 295, 350, 413, 490, 590, 826, 1225, 1475, 2065, 2450, 2891, 2950, 4130, 5782, 10325, 14455, 20650, 28910, 72275, 144550, 145283, 290566, 726415, 1016981, 1452830, 2033962, 3632075, 5084905, 7118867, 7264150, 8571697, 10169810, 14237734, 17143394, 25424525, 35594335, 42858485, 50849050, 60001879, 71188670, 85716970, 120003758, 177971675, 214292425, 300009395, 355943350, 420013153, 428584850, 600018790, 840026306, 1500046975, 2100065765, 3000093950, 4200131530, 10500328825, 21000657650]

約数ペア:

[(1, 21000657650), (2, 10500328825), (5, 4200131530), (7, 3000093950), (10, 2100065765), (14, 1500046975), (25, 840026306), (35, 600018790), (49, 428584850), (50, 420013153), (59, 355943350), (70, 300009395), (98, 214292425), (118, 177971675), (175, 120003758), (245, 85716970), (295, 71188670), (350, 60001879), (413, 50849050), (490, 42858485), (590, 35594335), (826, 25424525), (1225, 17143394), (1475, 14237734), (2065, 10169810), (2450, 8571697), (2891, 7264150), (2950, 7118867), (4130, 5084905), (5782, 3632075), (10325, 2033962), (14455, 1452830), (20650, 1016981), (28910, 726415), (72275, 290566), (144550, 145283)]