28513904

素因数分解:

$2^4\times {\mathrm{139}}^1\times {\mathrm{12821}}^1$

素因数の和:12968

約数の個数: 20

約数和(自身を含む): 55647480

約数和(自身を除く): 27133576

約数列:

[1, 2, 4, 8, 16, 139, 278, 556, 1112, 2224, 12821, 25642, 51284, 102568, 205136, 1782119, 3564238, 7128476, 14256952, 28513904]

約数ペア:

[(1, 28513904), (2, 14256952), (4, 7128476), (8, 3564238), (16, 1782119), (139, 205136), (278, 102568), (556, 51284), (1112, 25642), (2224, 12821)]