19945143

素因数分解:

$3^3\times {\mathrm{131}}^1\times {\mathrm{5639}}^1$

素因数の和:5779

約数の個数: 16

約数和(自身を含む): 29779200

約数和(自身を除く): 9834057

約数列:

[1, 3, 9, 27, 131, 393, 1179, 3537, 5639, 16917, 50751, 152253, 738709, 2216127, 6648381, 19945143]

約数ペア:

[(1, 19945143), (3, 6648381), (9, 2216127), (27, 738709), (131, 152253), (393, 50751), (1179, 16917), (3537, 5639)]