19866297

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{71}}^1\times {\mathrm{139}}^1$

素因数の和:285

約数の個数: 32

約数和(自身を含む): 29998080

約数和(自身を除く): 10131783

約数列:

[1, 3, 11, 33, 61, 71, 139, 183, 213, 417, 671, 781, 1529, 2013, 2343, 4331, 4587, 8479, 9869, 12993, 25437, 29607, 47641, 93269, 108559, 142923, 279807, 325677, 602009, 1806027, 6622099, 19866297]

約数ペア:

[(1, 19866297), (3, 6622099), (11, 1806027), (33, 602009), (61, 325677), (71, 279807), (139, 142923), (183, 108559), (213, 93269), (417, 47641), (671, 29607), (781, 25437), (1529, 12993), (2013, 9869), (2343, 8479), (4331, 4587)]