21754672

素因数分解:

$2^4\times {\mathrm{251}}^1\times {\mathrm{5417}}^1$

素因数の和:5676

約数の個数: 20

約数和(自身を含む): 42325416

約数和(自身を除く): 20570744

約数列:

[1, 2, 4, 8, 16, 251, 502, 1004, 2008, 4016, 5417, 10834, 21668, 43336, 86672, 1359667, 2719334, 5438668, 10877336, 21754672]

約数ペア:

[(1, 21754672), (2, 10877336), (4, 5438668), (8, 2719334), (16, 1359667), (251, 86672), (502, 43336), (1004, 21668), (2008, 10834), (4016, 5417)]