81089701

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{1289}}^1$

素因数の和:1369

約数の個数: 32

約数和(自身を含む): 108979200

約数和(自身を除く): 27889499

約数列:

[1, 7, 11, 19, 43, 77, 133, 209, 301, 473, 817, 1289, 1463, 3311, 5719, 8987, 9023, 14179, 24491, 55427, 62909, 99253, 171437, 269401, 387989, 609697, 1053113, 1885807, 4267879, 7371791, 11584243, 81089701]

約数ペア:

[(1, 81089701), (7, 11584243), (11, 7371791), (19, 4267879), (43, 1885807), (77, 1053113), (133, 609697), (209, 387989), (301, 269401), (473, 171437), (817, 99253), (1289, 62909), (1463, 55427), (3311, 24491), (5719, 14179), (8987, 9023)]