21831824

素因数分解:

$2^4\times 7^1\times {\mathrm{397}}^1\times {\mathrm{491}}^1$

素因数の和:903

約数の個数: 40

約数和(自身を含む): 48562368

約数和(自身を除く): 26730544

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 397, 491, 794, 982, 1588, 1964, 2779, 3176, 3437, 3928, 5558, 6352, 6874, 7856, 11116, 13748, 22232, 27496, 44464, 54992, 194927, 389854, 779708, 1364489, 1559416, 2728978, 3118832, 5457956, 10915912, 21831824]

約数ペア:

[(1, 21831824), (2, 10915912), (4, 5457956), (7, 3118832), (8, 2728978), (14, 1559416), (16, 1364489), (28, 779708), (56, 389854), (112, 194927), (397, 54992), (491, 44464), (794, 27496), (982, 22232), (1588, 13748), (1964, 11116), (2779, 7856), (3176, 6874), (3437, 6352), (3928, 5558)]