21488744

素因数分解:

$2^3\times {\mathrm{53}}^1\times {\mathrm{59}}^1\times {\mathrm{859}}^1$

素因数の和:977

約数の個数: 32

約数和(自身を含む): 41796000

約数和(自身を除く): 20307256

約数列:

[1, 2, 4, 8, 53, 59, 106, 118, 212, 236, 424, 472, 859, 1718, 3127, 3436, 6254, 6872, 12508, 25016, 45527, 50681, 91054, 101362, 182108, 202724, 364216, 405448, 2686093, 5372186, 10744372, 21488744]

約数ペア:

[(1, 21488744), (2, 10744372), (4, 5372186), (8, 2686093), (53, 405448), (59, 364216), (106, 202724), (118, 182108), (212, 101362), (236, 91054), (424, 50681), (472, 45527), (859, 25016), (1718, 12508), (3127, 6872), (3436, 6254)]