21173336

素因数分解:

$2^3\times {\mathrm{71}}^1\times {\mathrm{37277}}^1$

素因数の和:37354

約数の個数: 16

約数和(自身を含む): 40260240

約数和(自身を除く): 19086904

約数列:

[1, 2, 4, 8, 71, 142, 284, 568, 37277, 74554, 149108, 298216, 2646667, 5293334, 10586668, 21173336]

約数ペア:

[(1, 21173336), (2, 10586668), (4, 5293334), (8, 2646667), (71, 298216), (142, 149108), (284, 74554), (568, 37277)]