77481981

素因数分解:

$3^3\times {\mathrm{19}}^1\times {\mathrm{73}}^1\times {\mathrm{2069}}^1$

素因数の和:2170

約数の個数: 32

約数和(自身を含む): 122544000

約数和(自身を除く): 45062019

約数列:

[1, 3, 9, 19, 27, 57, 73, 171, 219, 513, 657, 1387, 1971, 2069, 4161, 6207, 12483, 18621, 37449, 39311, 55863, 117933, 151037, 353799, 453111, 1061397, 1359333, 2869703, 4077999, 8609109, 25827327, 77481981]

約数ペア:

[(1, 77481981), (3, 25827327), (9, 8609109), (19, 4077999), (27, 2869703), (57, 1359333), (73, 1061397), (171, 453111), (219, 353799), (513, 151037), (657, 117933), (1387, 55863), (1971, 39311), (2069, 37449), (4161, 18621), (6207, 12483)]