81348267

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{103}}^1\times {\mathrm{263}}^1$

素因数の和:400

約数の個数: 64

約数和(自身を含む): 147603456

約数和(自身を除く): 66255189

約数列:

[1, 3, 7, 11, 13, 21, 33, 39, 77, 91, 103, 143, 231, 263, 273, 309, 429, 721, 789, 1001, 1133, 1339, 1841, 2163, 2893, 3003, 3399, 3419, 4017, 5523, 7931, 8679, 9373, 10257, 14729, 20251, 23793, 23933, 27089, 28119, 37609, 44187, 60753, 71799, 81267, 103103, 112827, 189623, 263263, 297979, 309309, 352157, 568869, 789789, 893937, 1056471, 2085853, 2465099, 3873727, 6257559, 7395297, 11621181, 27116089, 81348267]

約数ペア:

[(1, 81348267), (3, 27116089), (7, 11621181), (11, 7395297), (13, 6257559), (21, 3873727), (33, 2465099), (39, 2085853), (77, 1056471), (91, 893937), (103, 789789), (143, 568869), (231, 352157), (263, 309309), (273, 297979), (309, 263263), (429, 189623), (721, 112827), (789, 103103), (1001, 81267), (1133, 71799), (1339, 60753), (1841, 44187), (2163, 37609), (2893, 28119), (3003, 27089), (3399, 23933), (3419, 23793), (4017, 20251), (5523, 14729), (7931, 10257), (8679, 9373)]