21480392

素因数分解:

$2^3\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{1523}}^1$

素因数の和:1613

約数の個数: 32

約数和(自身を含む): 42245280

約数和(自身を除く): 20764888

約数列:

[1, 2, 4, 8, 41, 43, 82, 86, 164, 172, 328, 344, 1523, 1763, 3046, 3526, 6092, 7052, 12184, 14104, 62443, 65489, 124886, 130978, 249772, 261956, 499544, 523912, 2685049, 5370098, 10740196, 21480392]

約数ペア:

[(1, 21480392), (2, 10740196), (4, 5370098), (8, 2685049), (41, 523912), (43, 499544), (82, 261956), (86, 249772), (164, 130978), (172, 124886), (328, 65489), (344, 62443), (1523, 14104), (1763, 12184), (3046, 7052), (3526, 6092)]