28193157

素因数分解:

$3^3\times {\mathrm{17}}^1\times {\mathrm{239}}^1\times {\mathrm{257}}^1$

素因数の和:522

約数の個数: 32

約数和(自身を含む): 44582400

約数和(自身を除く): 16389243

約数列:

[1, 3, 9, 17, 27, 51, 153, 239, 257, 459, 717, 771, 2151, 2313, 4063, 4369, 6453, 6939, 12189, 13107, 36567, 39321, 61423, 109701, 117963, 184269, 552807, 1044191, 1658421, 3132573, 9397719, 28193157]

約数ペア:

[(1, 28193157), (3, 9397719), (9, 3132573), (17, 1658421), (27, 1044191), (51, 552807), (153, 184269), (239, 117963), (257, 109701), (459, 61423), (717, 39321), (771, 36567), (2151, 13107), (2313, 12189), (4063, 6939), (4369, 6453)]