28282079

素因数分解:

$7^1\times {\mathrm{79}}^1\times {\mathrm{199}}^1\times {\mathrm{257}}^1$

素因数の和:542

約数の個数: 16

約数和(自身を含む): 33024000

約数和(自身を除く): 4741921

約数列:

[1, 7, 79, 199, 257, 553, 1393, 1799, 15721, 20303, 51143, 110047, 142121, 358001, 4040297, 28282079]

約数ペア:

[(1, 28282079), (7, 4040297), (79, 358001), (199, 142121), (257, 110047), (553, 51143), (1393, 20303), (1799, 15721)]