20378253

素因数分解:

$3^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{1361}}^1$

素因数の和:1425

約数の個数: 32

約数和(自身を含む): 33472512

約数和(自身を除く): 13094259

約数列:

[1, 3, 7, 21, 23, 31, 69, 93, 161, 217, 483, 651, 713, 1361, 2139, 4083, 4991, 9527, 14973, 28581, 31303, 42191, 93909, 126573, 219121, 295337, 657363, 886011, 970393, 2911179, 6792751, 20378253]

約数ペア:

[(1, 20378253), (3, 6792751), (7, 2911179), (21, 970393), (23, 886011), (31, 657363), (69, 295337), (93, 219121), (161, 126573), (217, 93909), (483, 42191), (651, 31303), (713, 28581), (1361, 14973), (2139, 9527), (4083, 4991)]