31689927

素因数分解:

$3^3\times {\mathrm{61}}^1\times {\mathrm{71}}^1\times {\mathrm{271}}^1$

素因数の和:412

約数の個数: 32

約数和(自身を含む): 48568320

約数和(自身を除く): 16878393

約数列:

[1, 3, 9, 27, 61, 71, 183, 213, 271, 549, 639, 813, 1647, 1917, 2439, 4331, 7317, 12993, 16531, 19241, 38979, 49593, 57723, 116937, 148779, 173169, 446337, 519507, 1173701, 3521103, 10563309, 31689927]

約数ペア:

[(1, 31689927), (3, 10563309), (9, 3521103), (27, 1173701), (61, 519507), (71, 446337), (183, 173169), (213, 148779), (271, 116937), (549, 57723), (639, 49593), (813, 38979), (1647, 19241), (1917, 16531), (2439, 12993), (4331, 7317)]