20831019

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{21767}}^1$

素因数の和:21810

約数の個数: 16

約数和(自身を含む): 31345920

約数和(自身を除く): 10514901

約数列:

[1, 3, 11, 29, 33, 87, 319, 957, 21767, 65301, 239437, 631243, 718311, 1893729, 6943673, 20831019]

約数ペア:

[(1, 20831019), (3, 6943673), (11, 1893729), (29, 718311), (33, 631243), (87, 239437), (319, 65301), (957, 21767)]