20117559

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{73}}^1\times {\mathrm{1193}}^1$

素因数の和:1287

約数の個数: 32

約数和(自身を含む): 33928704

約数和(自身を除く): 13811145

約数列:

[1, 3, 7, 11, 21, 33, 73, 77, 219, 231, 511, 803, 1193, 1533, 2409, 3579, 5621, 8351, 13123, 16863, 25053, 39369, 87089, 91861, 261267, 275583, 609623, 957979, 1828869, 2873937, 6705853, 20117559]

約数ペア:

[(1, 20117559), (3, 6705853), (7, 2873937), (11, 1828869), (21, 957979), (33, 609623), (73, 275583), (77, 261267), (219, 91861), (231, 87089), (511, 39369), (803, 25053), (1193, 16863), (1533, 13123), (2409, 8351), (3579, 5621)]