19687544

素因数分解:

$2^3\times {\mathrm{41}}^1\times {\mathrm{193}}^1\times {\mathrm{311}}^1$

素因数の和:551

約数の個数: 32

約数和(自身を含む): 38132640

約数和(自身を除く): 18445096

約数列:

[1, 2, 4, 8, 41, 82, 164, 193, 311, 328, 386, 622, 772, 1244, 1544, 2488, 7913, 12751, 15826, 25502, 31652, 51004, 60023, 63304, 102008, 120046, 240092, 480184, 2460943, 4921886, 9843772, 19687544]

約数ペア:

[(1, 19687544), (2, 9843772), (4, 4921886), (8, 2460943), (41, 480184), (82, 240092), (164, 120046), (193, 102008), (311, 63304), (328, 60023), (386, 51004), (622, 31652), (772, 25502), (1244, 15826), (1544, 12751), (2488, 7913)]