28403708

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{337}}^1\times {\mathrm{1109}}^1$

素因数の和:1469

約数の個数: 24

約数和(自身を含む): 52525200

約数和(自身を除く): 24121492

約数列:

[1, 2, 4, 19, 38, 76, 337, 674, 1109, 1348, 2218, 4436, 6403, 12806, 21071, 25612, 42142, 84284, 373733, 747466, 1494932, 7100927, 14201854, 28403708]

約数ペア:

[(1, 28403708), (2, 14201854), (4, 7100927), (19, 1494932), (38, 747466), (76, 373733), (337, 84284), (674, 42142), (1109, 25612), (1348, 21071), (2218, 12806), (4436, 6403)]