311927883

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{487}}^1\times {\mathrm{661}}^1$

素因数の和:1187

約数の個数: 32

約数和(自身を含む): 465200640

約数和(自身を除く): 153272757

約数列:

[1, 3, 17, 19, 51, 57, 323, 487, 661, 969, 1461, 1983, 8279, 9253, 11237, 12559, 24837, 27759, 33711, 37677, 157301, 213503, 321907, 471903, 640509, 965721, 5472419, 6116233, 16417257, 18348699, 103975961, 311927883]

約数ペア:

[(1, 311927883), (3, 103975961), (17, 18348699), (19, 16417257), (51, 6116233), (57, 5472419), (323, 965721), (487, 640509), (661, 471903), (969, 321907), (1461, 213503), (1983, 157301), (8279, 37677), (9253, 33711), (11237, 27759), (12559, 24837)]