20687589

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{3467}}^1$

素因数の和:3506

約数の個数: 32

約数和(自身を含む): 34957440

約数和(自身を除く): 14269851

約数列:

[1, 3, 9, 13, 17, 27, 39, 51, 117, 153, 221, 351, 459, 663, 1989, 3467, 5967, 10401, 31203, 45071, 58939, 93609, 135213, 176817, 405639, 530451, 766207, 1216917, 1591353, 2298621, 6895863, 20687589]

約数ペア:

[(1, 20687589), (3, 6895863), (9, 2298621), (13, 1591353), (17, 1216917), (27, 766207), (39, 530451), (51, 405639), (117, 176817), (153, 135213), (221, 93609), (351, 58939), (459, 45071), (663, 31203), (1989, 10401), (3467, 5967)]