20489008

素因数分解:

$2^4\times {\mathrm{439}}^1\times {\mathrm{2917}}^1$

素因数の和:3364

約数の個数: 20

約数和(自身を含む): 39801520

約数和(自身を除く): 19312512

約数列:

[1, 2, 4, 8, 16, 439, 878, 1756, 2917, 3512, 5834, 7024, 11668, 23336, 46672, 1280563, 2561126, 5122252, 10244504, 20489008]

約数ペア:

[(1, 20489008), (2, 10244504), (4, 5122252), (8, 2561126), (16, 1280563), (439, 46672), (878, 23336), (1756, 11668), (2917, 7024), (3512, 5834)]