20423817

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{131}}^1\times {\mathrm{1019}}^1$

素因数の和:1173

約数の個数: 24

約数和(自身を含む): 31505760

約数和(自身を除く): 11081943

約数列:

[1, 3, 9, 17, 51, 131, 153, 393, 1019, 1179, 2227, 3057, 6681, 9171, 17323, 20043, 51969, 133489, 155907, 400467, 1201401, 2269313, 6807939, 20423817]

約数ペア:

[(1, 20423817), (3, 6807939), (9, 2269313), (17, 1201401), (51, 400467), (131, 155907), (153, 133489), (393, 51969), (1019, 20043), (1179, 17323), (2227, 9171), (3057, 6681)]