21002288

素因数分解:

$2^4\times {\mathrm{151}}^1\times {\mathrm{8693}}^1$

素因数の和:8852

約数の個数: 20

約数和(自身を含む): 40966128

約数和(自身を除く): 19963840

約数列:

[1, 2, 4, 8, 16, 151, 302, 604, 1208, 2416, 8693, 17386, 34772, 69544, 139088, 1312643, 2625286, 5250572, 10501144, 21002288]

約数ペア:

[(1, 21002288), (2, 10501144), (4, 5250572), (8, 2625286), (16, 1312643), (151, 139088), (302, 69544), (604, 34772), (1208, 17386), (2416, 8693)]