21695367020

素因数分解:

$2^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{63809903}}^1$

素因数の和:63809929

約数の個数: 24

約数和(自身を含む): 48240287424

約数和(自身を除く): 26544920404

約数列:

[1, 2, 4, 5, 10, 17, 20, 34, 68, 85, 170, 340, 63809903, 127619806, 255239612, 319049515, 638099030, 1084768351, 1276198060, 2169536702, 4339073404, 5423841755, 10847683510, 21695367020]

約数ペア:

[(1, 21695367020), (2, 10847683510), (4, 5423841755), (5, 4339073404), (10, 2169536702), (17, 1276198060), (20, 1084768351), (34, 638099030), (68, 319049515), (85, 255239612), (170, 127619806), (340, 63809903)]