19883038721

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{211}}^1\times {\mathrm{60913}}^1$

素因数の和:61161

約数の個数: 32

約数和(自身を含む): 26034156288

約数和(自身を除く): 6151117567

約数列:

[1, 7, 13, 17, 91, 119, 211, 221, 1477, 1547, 2743, 3587, 19201, 25109, 46631, 60913, 326417, 426391, 791869, 1035521, 5543083, 7248647, 12852643, 13461773, 89968501, 94232411, 167084359, 218494931, 1169590513, 1529464517, 2840434103, 19883038721]

約数ペア:

[(1, 19883038721), (7, 2840434103), (13, 1529464517), (17, 1169590513), (91, 218494931), (119, 167084359), (211, 94232411), (221, 89968501), (1477, 13461773), (1547, 12852643), (2743, 7248647), (3587, 5543083), (19201, 1035521), (25109, 791869), (46631, 426391), (60913, 326417)]