28909881

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{3209}}^1$

素因数の和:3246

約数の個数: 48

約数和(自身を含む): 56085120

約数和(自身を除く): 27175239

約数列:

[1, 3, 7, 9, 11, 13, 21, 33, 39, 63, 77, 91, 99, 117, 143, 231, 273, 429, 693, 819, 1001, 1287, 3003, 3209, 9009, 9627, 22463, 28881, 35299, 41717, 67389, 105897, 125151, 202167, 247093, 292019, 317691, 375453, 458887, 741279, 876057, 1376661, 2223837, 2628171, 3212209, 4129983, 9636627, 28909881]

約数ペア:

[(1, 28909881), (3, 9636627), (7, 4129983), (9, 3212209), (11, 2628171), (13, 2223837), (21, 1376661), (33, 876057), (39, 741279), (63, 458887), (77, 375453), (91, 317691), (99, 292019), (117, 247093), (143, 202167), (231, 125151), (273, 105897), (429, 67389), (693, 41717), (819, 35299), (1001, 28881), (1287, 22463), (3003, 9627), (3209, 9009)]