21738855

素因数分解:

$3^1\times 5^1\times {\mathrm{811}}^1\times {\mathrm{1787}}^1$

素因数の和:2606

約数の個数: 16

約数和(自身を含む): 34844544

約数和(自身を除く): 13105689

約数列:

[1, 3, 5, 15, 811, 1787, 2433, 4055, 5361, 8935, 12165, 26805, 1449257, 4347771, 7246285, 21738855]

約数ペア:

[(1, 21738855), (3, 7246285), (5, 4347771), (15, 1449257), (811, 26805), (1787, 12165), (2433, 8935), (4055, 5361)]