28009449

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{199}}^1\times {\mathrm{401}}^1$

素因数の和:622

約数の個数: 32

約数和(自身を含む): 45024000

約数和(自身を除く): 17014551

約数列:

[1, 3, 9, 13, 27, 39, 117, 199, 351, 401, 597, 1203, 1791, 2587, 3609, 5213, 5373, 7761, 10827, 15639, 23283, 46917, 69849, 79799, 140751, 239397, 718191, 1037387, 2154573, 3112161, 9336483, 28009449]

約数ペア:

[(1, 28009449), (3, 9336483), (9, 3112161), (13, 2154573), (27, 1037387), (39, 718191), (117, 239397), (199, 140751), (351, 79799), (401, 69849), (597, 46917), (1203, 23283), (1791, 15639), (2587, 10827), (3609, 7761), (5213, 5373)]