20123253

素因数分解:

$3^2\times {\mathrm{73}}^1\times {\mathrm{109}}^1\times {\mathrm{281}}^1$

素因数の和:469

約数の個数: 24

約数和(自身を含む): 29841240

約数和(自身を除く): 9717987

約数列:

[1, 3, 9, 73, 109, 219, 281, 327, 657, 843, 981, 2529, 7957, 20513, 23871, 30629, 61539, 71613, 91887, 184617, 275661, 2235917, 6707751, 20123253]

約数ペア:

[(1, 20123253), (3, 6707751), (9, 2235917), (73, 275661), (109, 184617), (219, 91887), (281, 71613), (327, 61539), (657, 30629), (843, 23871), (981, 20513), (2529, 7957)]