21214556

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{20963}}^1$

素因数の和:21001

約数の個数: 24

約数和(自身を含む): 42263424

約数和(自身を除く): 21048868

約数列:

[1, 2, 4, 11, 22, 23, 44, 46, 92, 253, 506, 1012, 20963, 41926, 83852, 230593, 461186, 482149, 922372, 964298, 1928596, 5303639, 10607278, 21214556]

約数ペア:

[(1, 21214556), (2, 10607278), (4, 5303639), (11, 1928596), (22, 964298), (23, 922372), (44, 482149), (46, 461186), (92, 230593), (253, 83852), (506, 41926), (1012, 20963)]