20921988

素因数分解:

$2^2\times 3^1\times {\mathrm{881}}^1\times {\mathrm{1979}}^1$

素因数の和:2867

約数の個数: 24

約数和(自身を含む): 48898080

約数和(自身を除く): 27976092

約数列:

[1, 2, 3, 4, 6, 12, 881, 1762, 1979, 2643, 3524, 3958, 5286, 5937, 7916, 10572, 11874, 23748, 1743499, 3486998, 5230497, 6973996, 10460994, 20921988]

約数ペア:

[(1, 20921988), (2, 10460994), (3, 6973996), (4, 5230497), (6, 3486998), (12, 1743499), (881, 23748), (1762, 11874), (1979, 10572), (2643, 7916), (3524, 5937), (3958, 5286)]