168003963

素因数分解:

$3^4\times {\mathrm{71}}^1\times {\mathrm{131}}^1\times {\mathrm{223}}^1$

素因数の和:437

約数の個数: 40

約数和(自身を含む): 257596416

約数和(自身を除く): 89592453

約数列:

[1, 3, 9, 27, 71, 81, 131, 213, 223, 393, 639, 669, 1179, 1917, 2007, 3537, 5751, 6021, 9301, 10611, 15833, 18063, 27903, 29213, 47499, 83709, 87639, 142497, 251127, 262917, 427491, 753381, 788751, 1282473, 2074123, 2366253, 6222369, 18667107, 56001321, 168003963]

約数ペア:

[(1, 168003963), (3, 56001321), (9, 18667107), (27, 6222369), (71, 2366253), (81, 2074123), (131, 1282473), (213, 788751), (223, 753381), (393, 427491), (639, 262917), (669, 251127), (1179, 142497), (1917, 87639), (2007, 83709), (3537, 47499), (5751, 29213), (6021, 27903), (9301, 18063), (10611, 15833)]