21658157

素因数分解:

${\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{1709}}^1$

素因数の和:1780

約数の個数: 16

約数和(自身を含む): 24624000

約数和(自身を除く): 2965843

約数列:

[1, 19, 23, 29, 437, 551, 667, 1709, 12673, 32471, 39307, 49561, 746833, 941659, 1139903, 21658157]

約数ペア:

[(1, 21658157), (19, 1139903), (23, 941659), (29, 746833), (437, 49561), (551, 39307), (667, 32471), (1709, 12673)]