21020091

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{353}}^1\times {\mathrm{863}}^1$

素因数の和:1242

約数の個数: 16

約数和(自身を含む): 29362176

約数和(自身を除く): 8342085

約数列:

[1, 3, 23, 69, 353, 863, 1059, 2589, 8119, 19849, 24357, 59547, 304639, 913917, 7006697, 21020091]

約数ペア:

[(1, 21020091), (3, 7006697), (23, 913917), (69, 304639), (353, 59547), (863, 24357), (1059, 19849), (2589, 8119)]