18682947

素因数分解:

$3^3\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{461}}^1$

素因数の和:568

約数の個数: 32

約数和(自身を含む): 29568000

約数和(自身を除く): 10885053

約数列:

[1, 3, 9, 19, 27, 57, 79, 171, 237, 461, 513, 711, 1383, 1501, 2133, 4149, 4503, 8759, 12447, 13509, 26277, 36419, 40527, 78831, 109257, 236493, 327771, 691961, 983313, 2075883, 6227649, 18682947]

約数ペア:

[(1, 18682947), (3, 6227649), (9, 2075883), (19, 983313), (27, 691961), (57, 327771), (79, 236493), (171, 109257), (237, 78831), (461, 40527), (513, 36419), (711, 26277), (1383, 13509), (1501, 12447), (2133, 8759), (4149, 4503)]