21073929

素因数分解:

$3^1\times {\mathrm{97}}^1\times {\mathrm{139}}^1\times {\mathrm{521}}^1$

素因数の和:760

約数の個数: 16

約数和(自身を含む): 28647360

約数和(自身を除く): 7573431

約数列:

[1, 3, 97, 139, 291, 417, 521, 1563, 13483, 40449, 50537, 72419, 151611, 217257, 7024643, 21073929]

約数ペア:

[(1, 21073929), (3, 7024643), (97, 217257), (139, 151611), (291, 72419), (417, 50537), (521, 40449), (1563, 13483)]