19564984

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{128717}}^1$

素因数の和:128742

約数の個数: 16

約数和(自身を含む): 38615400

約数和(自身を除く): 19050416

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 128717, 257434, 514868, 1029736, 2445623, 4891246, 9782492, 19564984]

約数ペア:

[(1, 19564984), (2, 9782492), (4, 4891246), (8, 2445623), (19, 1029736), (38, 514868), (76, 257434), (152, 128717)]