28390484

素因数分解:

$2^2\times {\mathrm{19}}^2\times {\mathrm{19661}}^1$

素因数の和:19703

約数の個数: 18

約数和(自身を含む): 52438554

約数和(自身を除く): 24048070

約数列:

[1, 2, 4, 19, 38, 76, 361, 722, 1444, 19661, 39322, 78644, 373559, 747118, 1494236, 7097621, 14195242, 28390484]

約数ペア:

[(1, 28390484), (2, 14195242), (4, 7097621), (19, 1494236), (38, 747118), (76, 373559), (361, 78644), (722, 39322), (1444, 19661)]