19506905

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{31}}^1\times {\mathrm{673}}^1$

素因数の和:737

約数の個数: 32

約数和(自身を含む): 27952128

約数和(自身を除く): 8445223

約数列:

[1, 5, 11, 17, 31, 55, 85, 155, 187, 341, 527, 673, 935, 1705, 2635, 3365, 5797, 7403, 11441, 20863, 28985, 37015, 57205, 104315, 125851, 229493, 354671, 629255, 1147465, 1773355, 3901381, 19506905]

約数ペア:

[(1, 19506905), (5, 3901381), (11, 1773355), (17, 1147465), (31, 629255), (55, 354671), (85, 229493), (155, 125851), (187, 104315), (341, 57205), (527, 37015), (673, 28985), (935, 20863), (1705, 11441), (2635, 7403), (3365, 5797)]