20784376

素因数分解:

$2^3\times {\mathrm{41}}^1\times {\mathrm{63367}}^1$

素因数の和:63414

約数の個数: 16

約数和(自身を含む): 39921840

約数和(自身を除く): 19137464

約数列:

[1, 2, 4, 8, 41, 82, 164, 328, 63367, 126734, 253468, 506936, 2598047, 5196094, 10392188, 20784376]

約数ペア:

[(1, 20784376), (2, 10392188), (4, 5196094), (8, 2598047), (41, 506936), (82, 253468), (164, 126734), (328, 63367)]