28587897

素因数分解:

$3^4\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{1597}}^1$

素因数の和:1639

約数の個数: 40

約数和(自身を含む): 48726216

約数和(自身を除く): 20138319

約数列:

[1, 3, 9, 13, 17, 27, 39, 51, 81, 117, 153, 221, 351, 459, 663, 1053, 1377, 1597, 1989, 4791, 5967, 14373, 17901, 20761, 27149, 43119, 62283, 81447, 129357, 186849, 244341, 352937, 560547, 733023, 1058811, 1681641, 2199069, 3176433, 9529299, 28587897]

約数ペア:

[(1, 28587897), (3, 9529299), (9, 3176433), (13, 2199069), (17, 1681641), (27, 1058811), (39, 733023), (51, 560547), (81, 352937), (117, 244341), (153, 186849), (221, 129357), (351, 81447), (459, 62283), (663, 43119), (1053, 27149), (1377, 20761), (1597, 17901), (1989, 14373), (4791, 5967)]