248295489

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{487}}^1\times {\mathrm{769}}^1$

素因数の和:1289

約数の個数: 32

約数和(自身を含む): 378766080

約数和(自身を除く): 130470591

約数列:

[1, 3, 13, 17, 39, 51, 221, 487, 663, 769, 1461, 2307, 6331, 8279, 9997, 13073, 18993, 24837, 29991, 39219, 107627, 169949, 322881, 374503, 509847, 1123509, 4868539, 6366551, 14605617, 19099653, 82765163, 248295489]

約数ペア:

[(1, 248295489), (3, 82765163), (13, 19099653), (17, 14605617), (39, 6366551), (51, 4868539), (221, 1123509), (487, 509847), (663, 374503), (769, 322881), (1461, 169949), (2307, 107627), (6331, 39219), (8279, 29991), (9997, 24837), (13073, 18993)]