21384846

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{3947}}^1$

素因数の和:4005

約数の個数: 48

約数和(自身を含む): 54198144

約数和(自身を除く): 32813298

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 43, 63, 86, 126, 129, 258, 301, 387, 602, 774, 903, 1806, 2709, 3947, 5418, 7894, 11841, 23682, 27629, 35523, 55258, 71046, 82887, 165774, 169721, 248661, 339442, 497322, 509163, 1018326, 1188047, 1527489, 2376094, 3054978, 3564141, 7128282, 10692423, 21384846]

約数ペア:

[(1, 21384846), (2, 10692423), (3, 7128282), (6, 3564141), (7, 3054978), (9, 2376094), (14, 1527489), (18, 1188047), (21, 1018326), (42, 509163), (43, 497322), (63, 339442), (86, 248661), (126, 169721), (129, 165774), (258, 82887), (301, 71046), (387, 55258), (602, 35523), (774, 27629), (903, 23682), (1806, 11841), (2709, 7894), (3947, 5418)]