20540268

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{81509}}^1$

素因数の和:81526

約数の個数: 36

約数和(自身を含む): 59339280

約数和(自身を除く): 38799012

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 126, 252, 81509, 163018, 244527, 326036, 489054, 570563, 733581, 978108, 1141126, 1467162, 1711689, 2282252, 2934324, 3423378, 5135067, 6846756, 10270134, 20540268]

約数ペア:

[(1, 20540268), (2, 10270134), (3, 6846756), (4, 5135067), (6, 3423378), (7, 2934324), (9, 2282252), (12, 1711689), (14, 1467162), (18, 1141126), (21, 978108), (28, 733581), (36, 570563), (42, 489054), (63, 326036), (84, 244527), (126, 163018), (252, 81509)]