28177513

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{379}}^1$

素因数の和:461

約数の個数: 32

約数和(自身を含む): 37452800

約数和(自身を除く): 9275287

約数列:

[1, 7, 13, 19, 43, 91, 133, 247, 301, 379, 559, 817, 1729, 2653, 3913, 4927, 5719, 7201, 10621, 16297, 34489, 50407, 74347, 93613, 114079, 211861, 309643, 655291, 1483027, 2167501, 4025359, 28177513]

約数ペア:

[(1, 28177513), (7, 4025359), (13, 2167501), (19, 1483027), (43, 655291), (91, 309643), (133, 211861), (247, 114079), (301, 93613), (379, 74347), (559, 50407), (817, 34489), (1729, 16297), (2653, 10621), (3913, 7201), (4927, 5719)]