55291257

素因数分解:

$3^2\times 7^3\times {\mathrm{17911}}^1$

素因数の和:17938

約数の個数: 24

約数和(自身を含む): 93142400

約数和(自身を除く): 37851143

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 343, 441, 1029, 3087, 17911, 53733, 125377, 161199, 376131, 877639, 1128393, 2632917, 6143473, 7898751, 18430419, 55291257]

約数ペア:

[(1, 55291257), (3, 18430419), (7, 7898751), (9, 6143473), (21, 2632917), (49, 1128393), (63, 877639), (147, 376131), (343, 161199), (441, 125377), (1029, 53733), (3087, 17911)]