233991681

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{23557}}^1$

素因数の和:23621

約数の個数: 32

約数和(自身を含む): 398035968

約数和(自身を除く): 164044287

約数列:

[1, 3, 7, 11, 21, 33, 43, 77, 129, 231, 301, 473, 903, 1419, 3311, 9933, 23557, 70671, 164899, 259127, 494697, 777381, 1012951, 1813889, 3038853, 5441667, 7090657, 11142461, 21271971, 33427383, 77997227, 233991681]

約数ペア:

[(1, 233991681), (3, 77997227), (7, 33427383), (11, 21271971), (21, 11142461), (33, 7090657), (43, 5441667), (77, 3038853), (129, 1813889), (231, 1012951), (301, 777381), (473, 494697), (903, 259127), (1419, 164899), (3311, 70671), (9933, 23557)]