19489745

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{109}}^1\times {\mathrm{3251}}^1$

素因数の和:3376

約数の個数: 16

約数和(自身を含む): 25755840

約数和(自身を除く): 6266095

約数列:

[1, 5, 11, 55, 109, 545, 1199, 3251, 5995, 16255, 35761, 178805, 354359, 1771795, 3897949, 19489745]

約数ペア:

[(1, 19489745), (5, 3897949), (11, 1771795), (55, 354359), (109, 178805), (545, 35761), (1199, 16255), (3251, 5995)]