21386936

素因数分解:

$2^3\times {\mathrm{67}}^1\times {\mathrm{39901}}^1$

素因数の和:39974

約数の個数: 16

約数和(自身を含む): 40700040

約数和(自身を除く): 19313104

約数列:

[1, 2, 4, 8, 67, 134, 268, 536, 39901, 79802, 159604, 319208, 2673367, 5346734, 10693468, 21386936]

約数ペア:

[(1, 21386936), (2, 10693468), (4, 5346734), (8, 2673367), (67, 319208), (134, 159604), (268, 79802), (536, 39901)]