21985161

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{22973}}^1$

素因数の和:23016

約数の個数: 16

約数和(自身を含む): 33082560

約数和(自身を除く): 11097399

約数列:

[1, 3, 11, 29, 33, 87, 319, 957, 22973, 68919, 252703, 666217, 758109, 1998651, 7328387, 21985161]

約数ペア:

[(1, 21985161), (3, 7328387), (11, 1998651), (29, 758109), (33, 666217), (87, 252703), (319, 68919), (957, 22973)]