21252688

素因数分解:

$2^4\times {\mathrm{127}}^1\times {\mathrm{10459}}^1$

素因数の和:10594

約数の個数: 20

約数和(自身を含む): 41505280

約数和(自身を除く): 20252592

約数列:

[1, 2, 4, 8, 16, 127, 254, 508, 1016, 2032, 10459, 20918, 41836, 83672, 167344, 1328293, 2656586, 5313172, 10626344, 21252688]

約数ペア:

[(1, 21252688), (2, 10626344), (4, 5313172), (8, 2656586), (16, 1328293), (127, 167344), (254, 83672), (508, 41836), (1016, 20918), (2032, 10459)]