21339304

素因数分解:

$2^3\times 7^2\times {\mathrm{54437}}^1$

素因数の和:54457

約数の個数: 24

約数和(自身を含む): 46544490

約数和(自身を除く): 25205186

約数列:

[1, 2, 4, 7, 8, 14, 28, 49, 56, 98, 196, 392, 54437, 108874, 217748, 381059, 435496, 762118, 1524236, 2667413, 3048472, 5334826, 10669652, 21339304]

約数ペア:

[(1, 21339304), (2, 10669652), (4, 5334826), (7, 3048472), (8, 2667413), (14, 1524236), (28, 762118), (49, 435496), (56, 381059), (98, 217748), (196, 108874), (392, 54437)]