20509328

素因数分解:

$2^4\times 7^1\times {\mathrm{183119}}^1$

素因数の和:183134

約数の個数: 20

約数和(自身を含む): 45413760

約数和(自身を除く): 24904432

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 183119, 366238, 732476, 1281833, 1464952, 2563666, 2929904, 5127332, 10254664, 20509328]

約数ペア:

[(1, 20509328), (2, 10254664), (4, 5127332), (7, 2929904), (8, 2563666), (14, 1464952), (16, 1281833), (28, 732476), (56, 366238), (112, 183119)]