20921465157

素因数分解:

$3^1\times {\mathrm{17}}^3\times {\mathrm{29}}^1\times {\mathrm{48947}}^1$

素因数の和:49030

約数の個数: 32

約数和(自身を含む): 30661027200

約数和(自身を除く): 9739562043

約数列:

[1, 3, 17, 29, 51, 87, 289, 493, 867, 1479, 4913, 8381, 14739, 25143, 48947, 142477, 146841, 427431, 832099, 1419463, 2496297, 4258389, 14145683, 24130871, 42437049, 72392613, 240476611, 410224807, 721429833, 1230674421, 6973821719, 20921465157]

約数ペア:

[(1, 20921465157), (3, 6973821719), (17, 1230674421), (29, 721429833), (51, 410224807), (87, 240476611), (289, 72392613), (493, 42437049), (867, 24130871), (1479, 14145683), (4913, 4258389), (8381, 2496297), (14739, 1419463), (25143, 832099), (48947, 427431), (142477, 146841)]