20809544

素因数分解:

$2^3\times 7^1\times {\mathrm{227}}^1\times {\mathrm{1637}}^1$

素因数の和:1877

約数の個数: 32

約数和(自身を含む): 44815680

約数和(自身を除く): 24006136

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 227, 454, 908, 1589, 1637, 1816, 3178, 3274, 6356, 6548, 11459, 12712, 13096, 22918, 45836, 91672, 371599, 743198, 1486396, 2601193, 2972792, 5202386, 10404772, 20809544]

約数ペア:

[(1, 20809544), (2, 10404772), (4, 5202386), (7, 2972792), (8, 2601193), (14, 1486396), (28, 743198), (56, 371599), (227, 91672), (454, 45836), (908, 22918), (1589, 13096), (1637, 12712), (1816, 11459), (3178, 6548), (3274, 6356)]