261730656009

素因数分解:

$3^2\times {\mathrm{131}}^1\times {\mathrm{221993771}}^1$

素因数の和:221993908

約数の個数: 12

約数和(自身を含む): 380941312752

約数和(自身を除く): 119210656743

約数列:

[1, 3, 9, 131, 393, 1179, 221993771, 665981313, 1997943939, 29081184001, 87243552003, 261730656009]

約数ペア:

[(1, 261730656009), (3, 87243552003), (9, 29081184001), (131, 1997943939), (393, 665981313), (1179, 221993771)]