20926384

素因数分解:

$2^4\times {\mathrm{263}}^1\times {\mathrm{4973}}^1$

素因数の和:5244

約数の個数: 20

約数和(自身を含む): 40707216

約数和(自身を除く): 19780832

約数列:

[1, 2, 4, 8, 16, 263, 526, 1052, 2104, 4208, 4973, 9946, 19892, 39784, 79568, 1307899, 2615798, 5231596, 10463192, 20926384]

約数ペア:

[(1, 20926384), (2, 10463192), (4, 5231596), (8, 2615798), (16, 1307899), (263, 79568), (526, 39784), (1052, 19892), (2104, 9946), (4208, 4973)]