18766791

素因数分解:

$3^2\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{683}}^1$

素因数の和:803

約数の個数: 24

約数和(自身を含む): 28169856

約数和(自身を除く): 9403065

約数列:

[1, 3, 9, 43, 71, 129, 213, 387, 639, 683, 2049, 3053, 6147, 9159, 27477, 29369, 48493, 88107, 145479, 264321, 436437, 2085199, 6255597, 18766791]

約数ペア:

[(1, 18766791), (3, 6255597), (9, 2085199), (43, 436437), (71, 264321), (129, 145479), (213, 88107), (387, 48493), (639, 29369), (683, 27477), (2049, 9159), (3053, 6147)]