21389736

素因数分解:

$2^3\times 3^1\times {\mathrm{891239}}^1$

素因数の和:891248

約数の個数: 16

約数和(自身を含む): 53474400

約数和(自身を除く): 32084664

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 891239, 1782478, 2673717, 3564956, 5347434, 7129912, 10694868, 21389736]

約数ペア:

[(1, 21389736), (2, 10694868), (3, 7129912), (4, 5347434), (6, 3564956), (8, 2673717), (12, 1782478), (24, 891239)]