21687321

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{10139}}^1$

素因数の和:10196

約数の個数: 16

約数和(自身を含む): 31150080

約数和(自身を除く): 9462759

約数列:

[1, 3, 23, 31, 69, 93, 713, 2139, 10139, 30417, 233197, 314309, 699591, 942927, 7229107, 21687321]

約数ペア:

[(1, 21687321), (3, 7229107), (23, 942927), (31, 699591), (69, 314309), (93, 233197), (713, 30417), (2139, 10139)]