81747876

素因数分解:

$2^2\times 3^1\times 7^3\times {\mathrm{19861}}^1$

素因数の和:19889

約数の個数: 48

約数和(自身を含む): 222454400

約数和(自身を除く): 140706524

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 49, 84, 98, 147, 196, 294, 343, 588, 686, 1029, 1372, 2058, 4116, 19861, 39722, 59583, 79444, 119166, 139027, 238332, 278054, 417081, 556108, 834162, 973189, 1668324, 1946378, 2919567, 3892756, 5839134, 6812323, 11678268, 13624646, 20436969, 27249292, 40873938, 81747876]

約数ペア:

[(1, 81747876), (2, 40873938), (3, 27249292), (4, 20436969), (6, 13624646), (7, 11678268), (12, 6812323), (14, 5839134), (21, 3892756), (28, 2919567), (42, 1946378), (49, 1668324), (84, 973189), (98, 834162), (147, 556108), (196, 417081), (294, 278054), (343, 238332), (588, 139027), (686, 119166), (1029, 79444), (1372, 59583), (2058, 39722), (4116, 19861)]