21427994

素因数分解:

$2^1\times 7^2\times {\mathrm{41}}^1\times {\mathrm{5333}}^1$

素因数の和:5390

約数の個数: 24

約数和(自身を含む): 38308788

約数和(自身を除く): 16880794

約数列:

[1, 2, 7, 14, 41, 49, 82, 98, 287, 574, 2009, 4018, 5333, 10666, 37331, 74662, 218653, 261317, 437306, 522634, 1530571, 3061142, 10713997, 21427994]

約数ペア:

[(1, 21427994), (2, 10713997), (7, 3061142), (14, 1530571), (41, 522634), (49, 437306), (82, 261317), (98, 218653), (287, 74662), (574, 37331), (2009, 10666), (4018, 5333)]