21748563

素因数分解:

$3^2\times {\mathrm{37}}^1\times {\mathrm{241}}^1\times {\mathrm{271}}^1$

素因数の和:555

約数の個数: 24

約数和(自身を含む): 32517056

約数和(自身を除く): 10768493

約数列:

[1, 3, 9, 37, 111, 241, 271, 333, 723, 813, 2169, 2439, 8917, 10027, 26751, 30081, 65311, 80253, 90243, 195933, 587799, 2416507, 7249521, 21748563]

約数ペア:

[(1, 21748563), (3, 7249521), (9, 2416507), (37, 587799), (111, 195933), (241, 90243), (271, 80253), (333, 65311), (723, 30081), (813, 26751), (2169, 10027), (2439, 8917)]