28274785

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{271}}^2$

素因数の和:565

約数の個数: 24

約数和(自身を含む): 42458688

約数和(自身を除く): 14183903

約数列:

[1, 5, 7, 11, 35, 55, 77, 271, 385, 1355, 1897, 2981, 9485, 14905, 20867, 73441, 104335, 367205, 514087, 807851, 2570435, 4039255, 5654957, 28274785]

約数ペア:

[(1, 28274785), (5, 5654957), (7, 4039255), (11, 2570435), (35, 807851), (55, 514087), (77, 367205), (271, 104335), (385, 73441), (1355, 20867), (1897, 14905), (2981, 9485)]