19964637

素因数分解:

$3^5\times 7^1\times {\mathrm{11}}^2\times {\mathrm{97}}^1$

素因数の和:141

約数の個数: 72

約数和(自身を含む): 37955008

約数和(自身を除く): 17990371

約数列:

[1, 3, 7, 9, 11, 21, 27, 33, 63, 77, 81, 97, 99, 121, 189, 231, 243, 291, 297, 363, 567, 679, 693, 847, 873, 891, 1067, 1089, 1701, 2037, 2079, 2541, 2619, 2673, 3201, 3267, 6111, 6237, 7469, 7623, 7857, 9603, 9801, 11737, 18333, 18711, 22407, 22869, 23571, 28809, 29403, 35211, 54999, 67221, 68607, 82159, 86427, 105633, 164997, 201663, 205821, 246477, 259281, 316899, 604989, 739431, 950697, 1814967, 2218293, 2852091, 6654879, 19964637]

約数ペア:

[(1, 19964637), (3, 6654879), (7, 2852091), (9, 2218293), (11, 1814967), (21, 950697), (27, 739431), (33, 604989), (63, 316899), (77, 259281), (81, 246477), (97, 205821), (99, 201663), (121, 164997), (189, 105633), (231, 86427), (243, 82159), (291, 68607), (297, 67221), (363, 54999), (567, 35211), (679, 29403), (693, 28809), (847, 23571), (873, 22869), (891, 22407), (1067, 18711), (1089, 18333), (1701, 11737), (2037, 9801), (2079, 9603), (2541, 7857), (2619, 7623), (2673, 7469), (3201, 6237), (3267, 6111)]