21310980309

素因数分解:

$3^3\times {\mathrm{17}}^1\times {\mathrm{131}}^1\times {\mathrm{354421}}^1$

素因数の和:354578

約数の個数: 32

約数和(自身を含む): 33684266880

約数和(自身を除く): 12373286571

約数列:

[1, 3, 9, 17, 27, 51, 131, 153, 393, 459, 1179, 2227, 3537, 6681, 20043, 60129, 354421, 1063263, 3189789, 6025157, 9569367, 18075471, 46429151, 54226413, 139287453, 162679239, 417862359, 789295567, 1253587077, 2367886701, 7103660103, 21310980309]

約数ペア:

[(1, 21310980309), (3, 7103660103), (9, 2367886701), (17, 1253587077), (27, 789295567), (51, 417862359), (131, 162679239), (153, 139287453), (393, 54226413), (459, 46429151), (1179, 18075471), (2227, 9569367), (3537, 6025157), (6681, 3189789), (20043, 1063263), (60129, 354421)]