19903165

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{9109}}^1$

素因数の和:9156

約数の個数: 16

約数和(自身を含む): 26236800

約数和(自身を除く): 6333635

約数列:

[1, 5, 19, 23, 95, 115, 437, 2185, 9109, 45545, 173071, 209507, 865355, 1047535, 3980633, 19903165]

約数ペア:

[(1, 19903165), (5, 3980633), (19, 1047535), (23, 865355), (95, 209507), (115, 173071), (437, 45545), (2185, 9109)]