21287073

素因数分解:

$3^1\times {\mathrm{29}}^1\times {\mathrm{307}}^1\times {\mathrm{797}}^1$

素因数の和:1136

約数の個数: 16

約数和(自身を含む): 29494080

約数和(自身を除く): 8207007

約数列:

[1, 3, 29, 87, 307, 797, 921, 2391, 8903, 23113, 26709, 69339, 244679, 734037, 7095691, 21287073]

約数ペア:

[(1, 21287073), (3, 7095691), (29, 734037), (87, 244679), (307, 69339), (797, 26709), (921, 23113), (2391, 8903)]