20664

素因数分解:

$2^3\times 3^2\times 7^1\times {\mathrm{41}}^1$

素因数の和:60

約数の個数: 48

約数和(自身を含む): 65520

約数和(自身を除く): 44856

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 18, 21, 24, 28, 36, 41, 42, 56, 63, 72, 82, 84, 123, 126, 164, 168, 246, 252, 287, 328, 369, 492, 504, 574, 738, 861, 984, 1148, 1476, 1722, 2296, 2583, 2952, 3444, 5166, 6888, 10332, 20664]

約数ペア:

[(1, 20664), (2, 10332), (3, 6888), (4, 5166), (6, 3444), (7, 2952), (8, 2583), (9, 2296), (12, 1722), (14, 1476), (18, 1148), (21, 984), (24, 861), (28, 738), (36, 574), (41, 504), (42, 492), (56, 369), (63, 328), (72, 287), (82, 252), (84, 246), (123, 168), (126, 164)]