31161159

素因数分解:

$3^3\times {\mathrm{19}}^2\times {\mathrm{23}}^1\times {\mathrm{139}}^1$

素因数の和:209

約数の個数: 48

約数和(自身を含む): 51206400

約数和(自身を除く): 20045241

約数列:

[1, 3, 9, 19, 23, 27, 57, 69, 139, 171, 207, 361, 417, 437, 513, 621, 1083, 1251, 1311, 2641, 3197, 3249, 3753, 3933, 7923, 8303, 9591, 9747, 11799, 23769, 24909, 28773, 50179, 60743, 71307, 74727, 86319, 150537, 182229, 224181, 451611, 546687, 1154117, 1354833, 1640061, 3462351, 10387053, 31161159]

約数ペア:

[(1, 31161159), (3, 10387053), (9, 3462351), (19, 1640061), (23, 1354833), (27, 1154117), (57, 546687), (69, 451611), (139, 224181), (171, 182229), (207, 150537), (361, 86319), (417, 74727), (437, 71307), (513, 60743), (621, 50179), (1083, 28773), (1251, 24909), (1311, 23769), (2641, 11799), (3197, 9747), (3249, 9591), (3753, 8303), (3933, 7923)]