20922891

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{21863}}^1$

素因数の和:21906

約数の個数: 16

約数和(自身を含む): 31484160

約数和(自身を除く): 10561269

約数列:

[1, 3, 11, 29, 33, 87, 319, 957, 21863, 65589, 240493, 634027, 721479, 1902081, 6974297, 20922891]

約数ペア:

[(1, 20922891), (3, 6974297), (11, 1902081), (29, 721479), (33, 634027), (87, 240493), (319, 65589), (957, 21863)]