18667107

素因数分解:

$3^2\times {\mathrm{71}}^1\times {\mathrm{131}}^1\times {\mathrm{223}}^1$

素因数の和:431

約数の個数: 24

約数和(自身を含む): 27675648

約数和(自身を除く): 9008541

約数列:

[1, 3, 9, 71, 131, 213, 223, 393, 639, 669, 1179, 2007, 9301, 15833, 27903, 29213, 47499, 83709, 87639, 142497, 262917, 2074123, 6222369, 18667107]

約数ペア:

[(1, 18667107), (3, 6222369), (9, 2074123), (71, 262917), (131, 142497), (213, 87639), (223, 83709), (393, 47499), (639, 29213), (669, 27903), (1179, 15833), (2007, 9301)]