28291504

素因数分解:

$2^4\times {\mathrm{139}}^1\times {\mathrm{12721}}^1$

素因数の和:12868

約数の個数: 20

約数和(自身を含む): 55213480

約数和(自身を除く): 26921976

約数列:

[1, 2, 4, 8, 16, 139, 278, 556, 1112, 2224, 12721, 25442, 50884, 101768, 203536, 1768219, 3536438, 7072876, 14145752, 28291504]

約数ペア:

[(1, 28291504), (2, 14145752), (4, 7072876), (8, 3536438), (16, 1768219), (139, 203536), (278, 101768), (556, 50884), (1112, 25442), (2224, 12721)]