20639421

素因数分解:

$3^3\times {\mathrm{11}}^1\times {\mathrm{69493}}^1$

素因数の和:69513

約数の個数: 16

約数和(自身を含む): 33357120

約数和(自身を除く): 12717699

約数列:

[1, 3, 9, 11, 27, 33, 99, 297, 69493, 208479, 625437, 764423, 1876311, 2293269, 6879807, 20639421]

約数ペア:

[(1, 20639421), (3, 6879807), (9, 2293269), (11, 1876311), (27, 764423), (33, 625437), (99, 208479), (297, 69493)]