20459007

素因数分解:

$3^3\times {\mathrm{17}}^1\times {\mathrm{29}}^2\times {\mathrm{53}}^1$

素因数の和:137

約数の個数: 48

約数和(自身を含む): 33864480

約数和(自身を除く): 13405473

約数列:

[1, 3, 9, 17, 27, 29, 51, 53, 87, 153, 159, 261, 459, 477, 493, 783, 841, 901, 1431, 1479, 1537, 2523, 2703, 4437, 4611, 7569, 8109, 13311, 13833, 14297, 22707, 24327, 26129, 41499, 42891, 44573, 78387, 128673, 133719, 235161, 386019, 401157, 705483, 757741, 1203471, 2273223, 6819669, 20459007]

約数ペア:

[(1, 20459007), (3, 6819669), (9, 2273223), (17, 1203471), (27, 757741), (29, 705483), (51, 401157), (53, 386019), (87, 235161), (153, 133719), (159, 128673), (261, 78387), (459, 44573), (477, 42891), (493, 41499), (783, 26129), (841, 24327), (901, 22707), (1431, 14297), (1479, 13833), (1537, 13311), (2523, 8109), (2703, 7569), (4437, 4611)]