21808584

素因数分解:

$2^3\times 3^2\times 7^1\times {\mathrm{43271}}^1$

素因数の和:43290

約数の個数: 48

約数和(自身を含む): 67504320

約数和(自身を除く): 45695736

約数列:

[1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 18, 21, 24, 28, 36, 42, 56, 63, 72, 84, 126, 168, 252, 504, 43271, 86542, 129813, 173084, 259626, 302897, 346168, 389439, 519252, 605794, 778878, 908691, 1038504, 1211588, 1557756, 1817382, 2423176, 2726073, 3115512, 3634764, 5452146, 7269528, 10904292, 21808584]

約数ペア:

[(1, 21808584), (2, 10904292), (3, 7269528), (4, 5452146), (6, 3634764), (7, 3115512), (8, 2726073), (9, 2423176), (12, 1817382), (14, 1557756), (18, 1211588), (21, 1038504), (24, 908691), (28, 778878), (36, 605794), (42, 519252), (56, 389439), (63, 346168), (72, 302897), (84, 259626), (126, 173084), (168, 129813), (252, 86542), (504, 43271)]