20553216

素因数分解:

$2^9\times 3^1\times {\mathrm{13381}}^1$

素因数の和:13402

約数の個数: 40

約数和(自身を含む): 54759144

約数和(自身を除く): 34205928

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 48, 64, 96, 128, 192, 256, 384, 512, 768, 1536, 13381, 26762, 40143, 53524, 80286, 107048, 160572, 214096, 321144, 428192, 642288, 856384, 1284576, 1712768, 2569152, 3425536, 5138304, 6851072, 10276608, 20553216]

約数ペア:

[(1, 20553216), (2, 10276608), (3, 6851072), (4, 5138304), (6, 3425536), (8, 2569152), (12, 1712768), (16, 1284576), (24, 856384), (32, 642288), (48, 428192), (64, 321144), (96, 214096), (128, 160572), (192, 107048), (256, 80286), (384, 53524), (512, 40143), (768, 26762), (1536, 13381)]