21019600

素因数分解:

$2^4\times 5^2\times 7^1\times {\mathrm{7507}}^1$

素因数の和:7532

約数の個数: 60

約数和(自身を含む): 57721504

約数和(自身を除く): 36701904

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 25, 28, 35, 40, 50, 56, 70, 80, 100, 112, 140, 175, 200, 280, 350, 400, 560, 700, 1400, 2800, 7507, 15014, 30028, 37535, 52549, 60056, 75070, 105098, 120112, 150140, 187675, 210196, 262745, 300280, 375350, 420392, 525490, 600560, 750700, 840784, 1050980, 1313725, 1501400, 2101960, 2627450, 3002800, 4203920, 5254900, 10509800, 21019600]

約数ペア:

[(1, 21019600), (2, 10509800), (4, 5254900), (5, 4203920), (7, 3002800), (8, 2627450), (10, 2101960), (14, 1501400), (16, 1313725), (20, 1050980), (25, 840784), (28, 750700), (35, 600560), (40, 525490), (50, 420392), (56, 375350), (70, 300280), (80, 262745), (100, 210196), (112, 187675), (140, 150140), (175, 120112), (200, 105098), (280, 75070), (350, 60056), (400, 52549), (560, 37535), (700, 30028), (1400, 15014), (2800, 7507)]