18667467

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{991}}^1$

素因数の和:1040

約数の個数: 48

約数和(自身を含む): 34664448

約数和(自身を除く): 15996981

約数列:

[1, 3, 7, 9, 13, 21, 23, 39, 63, 69, 91, 117, 161, 207, 273, 299, 483, 819, 897, 991, 1449, 2093, 2691, 2973, 6279, 6937, 8919, 12883, 18837, 20811, 22793, 38649, 62433, 68379, 90181, 115947, 159551, 205137, 270543, 296309, 478653, 811629, 888927, 1435959, 2074163, 2666781, 6222489, 18667467]

約数ペア:

[(1, 18667467), (3, 6222489), (7, 2666781), (9, 2074163), (13, 1435959), (21, 888927), (23, 811629), (39, 478653), (63, 296309), (69, 270543), (91, 205137), (117, 159551), (161, 115947), (207, 90181), (273, 68379), (299, 62433), (483, 38649), (819, 22793), (897, 20811), (991, 18837), (1449, 12883), (2093, 8919), (2691, 6937), (2973, 6279)]