20491952

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{98519}}^1$

素因数の和:98540

約数の個数: 20

約数和(自身を含む): 42757680

約数和(自身を除く): 22265728

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 98519, 197038, 394076, 788152, 1280747, 1576304, 2561494, 5122988, 10245976, 20491952]

約数ペア:

[(1, 20491952), (2, 10245976), (4, 5122988), (8, 2561494), (13, 1576304), (16, 1280747), (26, 788152), (52, 394076), (104, 197038), (208, 98519)]