216156681

素因数分解:

$3^4\times {\mathrm{13}}^1\times {\mathrm{131}}^1\times {\mathrm{1567}}^1$

素因数の和:1723

約数の個数: 40

約数和(自身を含む): 350617344

約数和(自身を除く): 134460663

約数列:

[1, 3, 9, 13, 27, 39, 81, 117, 131, 351, 393, 1053, 1179, 1567, 1703, 3537, 4701, 5109, 10611, 14103, 15327, 20371, 42309, 45981, 61113, 126927, 137943, 183339, 205277, 550017, 615831, 1650051, 1847493, 2668601, 5542479, 8005803, 16627437, 24017409, 72052227, 216156681]

約数ペア:

[(1, 216156681), (3, 72052227), (9, 24017409), (13, 16627437), (27, 8005803), (39, 5542479), (81, 2668601), (117, 1847493), (131, 1650051), (351, 615831), (393, 550017), (1053, 205277), (1179, 183339), (1567, 137943), (1703, 126927), (3537, 61113), (4701, 45981), (5109, 42309), (10611, 20371), (14103, 15327)]