18827451

素因数分解:

$3^3\times {\mathrm{131}}^1\times {\mathrm{5323}}^1$

素因数の和:5463

約数の個数: 16

約数和(自身を含む): 28110720

約数和(自身を除く): 9283269

約数列:

[1, 3, 9, 27, 131, 393, 1179, 3537, 5323, 15969, 47907, 143721, 697313, 2091939, 6275817, 18827451]

約数ペア:

[(1, 18827451), (3, 6275817), (9, 2091939), (27, 697313), (131, 143721), (393, 47907), (1179, 15969), (3537, 5323)]