20512497891

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{269}}^1\times {\mathrm{21059}}^1$

素因数の和:21419

約数の個数: 32

約数和(自身を含む): 29477260800

約数和(自身を除く): 8964762909

約数列:

[1, 3, 17, 51, 71, 213, 269, 807, 1207, 3621, 4573, 13719, 19099, 21059, 57297, 63177, 324683, 358003, 974049, 1074009, 1495189, 4485567, 5664871, 16994613, 25418213, 76254639, 96302807, 288908421, 402205841, 1206617523, 6837499297, 20512497891]

約数ペア:

[(1, 20512497891), (3, 6837499297), (17, 1206617523), (51, 402205841), (71, 288908421), (213, 96302807), (269, 76254639), (807, 25418213), (1207, 16994613), (3621, 5664871), (4573, 4485567), (13719, 1495189), (19099, 1074009), (21059, 974049), (57297, 358003), (63177, 324683)]