19277995

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{83}}^1\times {\mathrm{103}}^1$

素因数の和:243

約数の個数: 32

約数和(自身を含む): 26417664

約数和(自身を除く): 7139669

約数列:

[1, 5, 11, 41, 55, 83, 103, 205, 415, 451, 515, 913, 1133, 2255, 3403, 4223, 4565, 5665, 8549, 17015, 21115, 37433, 42745, 46453, 94039, 187165, 232265, 350509, 470195, 1752545, 3855599, 19277995]

約数ペア:

[(1, 19277995), (5, 3855599), (11, 1752545), (41, 470195), (55, 350509), (83, 232265), (103, 187165), (205, 94039), (415, 46453), (451, 42745), (515, 37433), (913, 21115), (1133, 17015), (2255, 8549), (3403, 5665), (4223, 4565)]