21540136

素因数分解:

$2^3\times {\mathrm{89}}^1\times {\mathrm{30253}}^1$

素因数の和:30348

約数の個数: 16

約数和(自身を含む): 40842900

約数和(自身を除く): 19302764

約数列:

[1, 2, 4, 8, 89, 178, 356, 712, 30253, 60506, 121012, 242024, 2692517, 5385034, 10770068, 21540136]

約数ペア:

[(1, 21540136), (2, 10770068), (4, 5385034), (8, 2692517), (89, 242024), (178, 121012), (356, 60506), (712, 30253)]