1638862821

素因数分解:

$3^3\times {\mathrm{79}}^1\times {\mathrm{89}}^2\times {\mathrm{97}}^1$

素因数の和:363

約数の個数: 48

約数和(自身を含む): 2512249600

約数和(自身を除く): 873386779

約数列:

[1, 3, 9, 27, 79, 89, 97, 237, 267, 291, 711, 801, 873, 2133, 2403, 2619, 7031, 7663, 7921, 8633, 21093, 22989, 23763, 25899, 63279, 68967, 71289, 77697, 189837, 206901, 213867, 233091, 625759, 682007, 768337, 1877277, 2046021, 2305011, 5631831, 6138063, 6915033, 16895493, 18414189, 20745099, 60698623, 182095869, 546287607, 1638862821]

約数ペア:

[(1, 1638862821), (3, 546287607), (9, 182095869), (27, 60698623), (79, 20745099), (89, 18414189), (97, 16895493), (237, 6915033), (267, 6138063), (291, 5631831), (711, 2305011), (801, 2046021), (873, 1877277), (2133, 768337), (2403, 682007), (2619, 625759), (7031, 233091), (7663, 213867), (7921, 206901), (8633, 189837), (21093, 77697), (22989, 71289), (23763, 68967), (25899, 63279)]