21940193

素因数分解:

${\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{113}}^1\times {\mathrm{929}}^1$

素因数の和:1072

約数の個数: 16

約数和(自身を含む): 25444800

約数和(自身を除く): 3504607

約数列:

[1, 11, 19, 113, 209, 929, 1243, 2147, 10219, 17651, 23617, 104977, 194161, 1154747, 1994563, 21940193]

約数ペア:

[(1, 21940193), (11, 1994563), (19, 1154747), (113, 194161), (209, 104977), (929, 23617), (1243, 17651), (2147, 10219)]