21052744

素因数分解:

$2^3\times {\mathrm{383}}^1\times {\mathrm{6871}}^1$

素因数の和:7260

約数の個数: 16

約数和(自身を含む): 39582720

約数和(自身を除く): 18529976

約数列:

[1, 2, 4, 8, 383, 766, 1532, 3064, 6871, 13742, 27484, 54968, 2631593, 5263186, 10526372, 21052744]

約数ペア:

[(1, 21052744), (2, 10526372), (4, 5263186), (8, 2631593), (383, 54968), (766, 27484), (1532, 13742), (3064, 6871)]