21010488

素因数分解:

$2^3\times 3^1\times {\mathrm{43}}^1\times {\mathrm{20359}}^1$

素因数の和:20411

約数の個数: 32

約数和(自身を含む): 53750400

約数和(自身を除く): 32739912

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 43, 86, 129, 172, 258, 344, 516, 1032, 20359, 40718, 61077, 81436, 122154, 162872, 244308, 488616, 875437, 1750874, 2626311, 3501748, 5252622, 7003496, 10505244, 21010488]

約数ペア:

[(1, 21010488), (2, 10505244), (3, 7003496), (4, 5252622), (6, 3501748), (8, 2626311), (12, 1750874), (24, 875437), (43, 488616), (86, 244308), (129, 162872), (172, 122154), (258, 81436), (344, 61077), (516, 40718), (1032, 20359)]