18620217

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{97}}^1\times {\mathrm{277}}^1$

素因数の和:398

約数の個数: 48

約数和(自身を含む): 34000512

約数和(自身を除く): 15380295

約数列:

[1, 3, 7, 9, 11, 21, 33, 63, 77, 97, 99, 231, 277, 291, 679, 693, 831, 873, 1067, 1939, 2037, 2493, 3047, 3201, 5817, 6111, 7469, 9141, 9603, 17451, 21329, 22407, 26869, 27423, 63987, 67221, 80607, 188083, 191961, 241821, 295559, 564249, 886677, 1692747, 2068913, 2660031, 6206739, 18620217]

約数ペア:

[(1, 18620217), (3, 6206739), (7, 2660031), (9, 2068913), (11, 1692747), (21, 886677), (33, 564249), (63, 295559), (77, 241821), (97, 191961), (99, 188083), (231, 80607), (277, 67221), (291, 63987), (679, 27423), (693, 26869), (831, 22407), (873, 21329), (1067, 17451), (1939, 9603), (2037, 9141), (2493, 7469), (3047, 6111), (3201, 5817)]