20121021

素因数分解:

$3^3\times {\mathrm{23}}^1\times {\mathrm{32401}}^1$

素因数の和:32433

約数の個数: 16

約数和(自身を含む): 31105920

約数和(自身を除く): 10984899

約数列:

[1, 3, 9, 23, 27, 69, 207, 621, 32401, 97203, 291609, 745223, 874827, 2235669, 6707007, 20121021]

約数ペア:

[(1, 20121021), (3, 6707007), (9, 2235669), (23, 874827), (27, 745223), (69, 291609), (207, 97203), (621, 32401)]