21391152

素因数分解:

$2^4\times 3^1\times {\mathrm{445649}}^1$

素因数の和:445660

約数の個数: 20

約数和(自身を含む): 55260600

約数和(自身を除く): 33869448

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 48, 445649, 891298, 1336947, 1782596, 2673894, 3565192, 5347788, 7130384, 10695576, 21391152]

約数ペア:

[(1, 21391152), (2, 10695576), (3, 7130384), (4, 5347788), (6, 3565192), (8, 2673894), (12, 1782596), (16, 1336947), (24, 891298), (48, 445649)]