816996964

素因数分解:

$2^2\times 7^1\times {\mathrm{139}}^1\times {\mathrm{209917}}^1$

素因数の和:210067

約数の個数: 24

約数和(自身を含む): 1645757120

約数和(自身を除く): 828760156

約数列:

[1, 2, 4, 7, 14, 28, 139, 278, 556, 973, 1946, 3892, 209917, 419834, 839668, 1469419, 2938838, 5877676, 29178463, 58356926, 116713852, 204249241, 408498482, 816996964]

約数ペア:

[(1, 816996964), (2, 408498482), (4, 204249241), (7, 116713852), (14, 58356926), (28, 29178463), (139, 5877676), (278, 2938838), (556, 1469419), (973, 839668), (1946, 419834), (3892, 209917)]