21992179

素因数分解:

${\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{71}}^1\times {\mathrm{971}}^1$

素因数の和:1082

約数の個数: 16

約数和(自身を含む): 25194240

約数和(自身を除く): 3202061

約数列:

[1, 11, 29, 71, 319, 781, 971, 2059, 10681, 22649, 28159, 68941, 309749, 758351, 1999289, 21992179]

約数ペア:

[(1, 21992179), (11, 1999289), (29, 758351), (71, 309749), (319, 68941), (781, 28159), (971, 22649), (2059, 10681)]