21171984

素因数分解:

$2^4\times 3^1\times {\mathrm{197}}^1\times {\mathrm{2239}}^1$

素因数の和:2447

約数の個数: 40

約数和(自身を含む): 54996480

約数和(自身を除く): 33824496

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 48, 197, 394, 591, 788, 1182, 1576, 2239, 2364, 3152, 4478, 4728, 6717, 8956, 9456, 13434, 17912, 26868, 35824, 53736, 107472, 441083, 882166, 1323249, 1764332, 2646498, 3528664, 5292996, 7057328, 10585992, 21171984]

約数ペア:

[(1, 21171984), (2, 10585992), (3, 7057328), (4, 5292996), (6, 3528664), (8, 2646498), (12, 1764332), (16, 1323249), (24, 882166), (48, 441083), (197, 107472), (394, 53736), (591, 35824), (788, 26868), (1182, 17912), (1576, 13434), (2239, 9456), (2364, 8956), (3152, 6717), (4478, 4728)]