405520021

素因数分解:

${\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{23741}}^1$

素因数の和:23820

約数の個数: 16

約数和(自身を含む): 455846400

約数和(自身を除く): 50326379

約数列:

[1, 19, 29, 31, 551, 589, 899, 17081, 23741, 451079, 688489, 735971, 13081291, 13983449, 21343159, 405520021]

約数ペア:

[(1, 405520021), (19, 21343159), (29, 13983449), (31, 13081291), (551, 735971), (589, 688489), (899, 451079), (17081, 23741)]