20999161

素因数分解:

${\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{1657}}^1$

素因数の和:1728

約数の個数: 16

約数和(自身を含む): 23875200

約数和(自身を除く): 2876039

約数列:

[1, 19, 23, 29, 437, 551, 667, 1657, 12673, 31483, 38111, 48053, 724109, 913007, 1105219, 20999161]

約数ペア:

[(1, 20999161), (19, 1105219), (23, 913007), (29, 724109), (437, 48053), (551, 38111), (667, 31483), (1657, 12673)]