20730171

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{2087}}^1$

素因数の和:2151

約数の個数: 32

約数和(自身を含む): 35278848

約数和(自身を除く): 14548677

約数列:

[1, 3, 7, 11, 21, 33, 43, 77, 129, 231, 301, 473, 903, 1419, 2087, 3311, 6261, 9933, 14609, 22957, 43827, 68871, 89741, 160699, 269223, 482097, 628187, 987151, 1884561, 2961453, 6910057, 20730171]

約数ペア:

[(1, 20730171), (3, 6910057), (7, 2961453), (11, 1884561), (21, 987151), (33, 628187), (43, 482097), (77, 269223), (129, 160699), (231, 89741), (301, 68871), (473, 43827), (903, 22957), (1419, 14609), (2087, 9933), (3311, 6261)]