1257392889

素因数分解:

$3^4\times {\mathrm{71}}^1\times {\mathrm{131}}^1\times {\mathrm{1669}}^1$

素因数の和:1883

約数の個数: 40

約数和(自身を含む): 1920473280

約数和(自身を除く): 663080391

約数列:

[1, 3, 9, 27, 71, 81, 131, 213, 393, 639, 1179, 1669, 1917, 3537, 5007, 5751, 9301, 10611, 15021, 27903, 45063, 83709, 118499, 135189, 218639, 251127, 355497, 655917, 753381, 1066491, 1967751, 3199473, 5903253, 9598419, 15523369, 17709759, 46570107, 139710321, 419130963, 1257392889]

約数ペア:

[(1, 1257392889), (3, 419130963), (9, 139710321), (27, 46570107), (71, 17709759), (81, 15523369), (131, 9598419), (213, 5903253), (393, 3199473), (639, 1967751), (1179, 1066491), (1669, 753381), (1917, 655917), (3537, 355497), (5007, 251127), (5751, 218639), (9301, 135189), (10611, 118499), (15021, 83709), (27903, 45063)]