28417311

素因数分解:

$3^4\times {\mathrm{13}}^1\times {\mathrm{26987}}^1$

素因数の和:27012

約数の個数: 20

約数和(自身を含む): 45717672

約数和(自身を除く): 17300361

約数列:

[1, 3, 9, 13, 27, 39, 81, 117, 351, 1053, 26987, 80961, 242883, 350831, 728649, 1052493, 2185947, 3157479, 9472437, 28417311]

約数ペア:

[(1, 28417311), (3, 9472437), (9, 3157479), (13, 2185947), (27, 1052493), (39, 728649), (81, 350831), (117, 242883), (351, 80961), (1053, 26987)]