28347981

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{263}}^1$

素因数の和:377

約数の個数: 32

約数和(自身を含む): 41902080

約数和(自身を除く): 13554099

約数列:

[1, 3, 19, 31, 57, 61, 93, 183, 263, 589, 789, 1159, 1767, 1891, 3477, 4997, 5673, 8153, 14991, 16043, 24459, 35929, 48129, 107787, 154907, 304817, 464721, 497333, 914451, 1491999, 9449327, 28347981]

約数ペア:

[(1, 28347981), (3, 9449327), (19, 1491999), (31, 914451), (57, 497333), (61, 464721), (93, 304817), (183, 154907), (263, 107787), (589, 48129), (789, 35929), (1159, 24459), (1767, 16043), (1891, 14991), (3477, 8153), (4997, 5673)]