19474721

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{73}}^1\times {\mathrm{1657}}^1$

素因数の和:1760

約数の個数: 16

約数和(自身を含む): 23556864

約数和(自身を除く): 4082143

約数列:

[1, 7, 23, 73, 161, 511, 1657, 1679, 11599, 11753, 38111, 120961, 266777, 846727, 2782103, 19474721]

約数ペア:

[(1, 19474721), (7, 2782103), (23, 846727), (73, 266777), (161, 120961), (511, 38111), (1657, 11753), (1679, 11599)]