28011165

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{20521}}^1$

素因数の和:20549

約数の個数: 32

約数和(自身を含む): 55163136

約数和(自身を除く): 27151971

約数列:

[1, 3, 5, 7, 13, 15, 21, 35, 39, 65, 91, 105, 195, 273, 455, 1365, 20521, 61563, 102605, 143647, 266773, 307815, 430941, 718235, 800319, 1333865, 1867411, 2154705, 4001595, 5602233, 9337055, 28011165]

約数ペア:

[(1, 28011165), (3, 9337055), (5, 5602233), (7, 4001595), (13, 2154705), (15, 1867411), (21, 1333865), (35, 800319), (39, 718235), (65, 430941), (91, 307815), (105, 266773), (195, 143647), (273, 102605), (455, 61563), (1365, 20521)]