21111986

素因数分解:

$2^1\times 7^1\times {\mathrm{593}}^1\times {\mathrm{2543}}^1$

素因数の和:3145

約数の個数: 16

約数和(自身を含む): 36267264

約数和(自身を除く): 15155278

約数列:

[1, 2, 7, 14, 593, 1186, 2543, 4151, 5086, 8302, 17801, 35602, 1507999, 3015998, 10555993, 21111986]

約数ペア:

[(1, 21111986), (2, 10555993), (7, 3015998), (14, 1507999), (593, 35602), (1186, 17801), (2543, 8302), (4151, 5086)]