81721416

素因数分解:

$2^3\times 3^1\times 7^2\times {\mathrm{69491}}^1$

素因数の和:69514

約数の個数: 48

約数和(自身を含む): 237662640

約数和(自身を除く): 155941224

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 21, 24, 28, 42, 49, 56, 84, 98, 147, 168, 196, 294, 392, 588, 1176, 69491, 138982, 208473, 277964, 416946, 486437, 555928, 833892, 972874, 1459311, 1667784, 1945748, 2918622, 3405059, 3891496, 5837244, 6810118, 10215177, 11674488, 13620236, 20430354, 27240472, 40860708, 81721416]

約数ペア:

[(1, 81721416), (2, 40860708), (3, 27240472), (4, 20430354), (6, 13620236), (7, 11674488), (8, 10215177), (12, 6810118), (14, 5837244), (21, 3891496), (24, 3405059), (28, 2918622), (42, 1945748), (49, 1667784), (56, 1459311), (84, 972874), (98, 833892), (147, 555928), (168, 486437), (196, 416946), (294, 277964), (392, 208473), (588, 138982), (1176, 69491)]