20885956

素因数分解:

$2^2\times 7^3\times {\mathrm{13}}^1\times {\mathrm{1171}}^1$

素因数の和:1209

約数の個数: 48

約数和(自身を含む): 45942400

約数和(自身を除く): 25056444

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 49, 52, 91, 98, 182, 196, 343, 364, 637, 686, 1171, 1274, 1372, 2342, 2548, 4459, 4684, 8197, 8918, 15223, 16394, 17836, 30446, 32788, 57379, 60892, 106561, 114758, 213122, 229516, 401653, 426244, 745927, 803306, 1491854, 1606612, 2983708, 5221489, 10442978, 20885956]

約数ペア:

[(1, 20885956), (2, 10442978), (4, 5221489), (7, 2983708), (13, 1606612), (14, 1491854), (26, 803306), (28, 745927), (49, 426244), (52, 401653), (91, 229516), (98, 213122), (182, 114758), (196, 106561), (343, 60892), (364, 57379), (637, 32788), (686, 30446), (1171, 17836), (1274, 16394), (1372, 15223), (2342, 8918), (2548, 8197), (4459, 4684)]