205991709

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{431}}^1\times {\mathrm{2069}}^1$

素因数の和:2521

約数の個数: 32

約数和(自身を含む): 343388160

約数和(自身を除く): 137396451

約数列:

[1, 3, 7, 11, 21, 33, 77, 231, 431, 1293, 2069, 3017, 4741, 6207, 9051, 14223, 14483, 22759, 33187, 43449, 68277, 99561, 159313, 477939, 891739, 2675217, 6242173, 9809129, 18726519, 29427387, 68663903, 205991709]

約数ペア:

[(1, 205991709), (3, 68663903), (7, 29427387), (11, 18726519), (21, 9809129), (33, 6242173), (77, 2675217), (231, 891739), (431, 477939), (1293, 159313), (2069, 99561), (3017, 68277), (4741, 43449), (6207, 33187), (9051, 22759), (14223, 14483)]