28768131

素因数分解:

$3^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{26861}}^1$

素因数の和:26891

約数の個数: 24

約数和(自身を含む): 50285664

約数和(自身を除く): 21517533

約数列:

[1, 3, 7, 9, 17, 21, 51, 63, 119, 153, 357, 1071, 26861, 80583, 188027, 241749, 456637, 564081, 1369911, 1692243, 3196459, 4109733, 9589377, 28768131]

約数ペア:

[(1, 28768131), (3, 9589377), (7, 4109733), (9, 3196459), (17, 1692243), (21, 1369911), (51, 564081), (63, 456637), (119, 241749), (153, 188027), (357, 80583), (1071, 26861)]