28521189

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{131}}^1\times {\mathrm{1423}}^1$

素因数の和:1577

約数の個数: 24

約数和(自身を含む): 43984512

約数和(自身を除く): 15463323

約数列:

[1, 3, 9, 17, 51, 131, 153, 393, 1179, 1423, 2227, 4269, 6681, 12807, 20043, 24191, 72573, 186413, 217719, 559239, 1677717, 3169021, 9507063, 28521189]

約数ペア:

[(1, 28521189), (3, 9507063), (9, 3169021), (17, 1677717), (51, 559239), (131, 217719), (153, 186413), (393, 72573), (1179, 24191), (1423, 20043), (2227, 12807), (4269, 6681)]