2663361

素因数分解:

$3^4\times {\mathrm{131}}^1\times {\mathrm{251}}^1$

素因数の和:394

約数の個数: 20

約数和(自身を含む): 4024944

約数和(自身を除く): 1361583

約数列:

[1, 3, 9, 27, 81, 131, 251, 393, 753, 1179, 2259, 3537, 6777, 10611, 20331, 32881, 98643, 295929, 887787, 2663361]

約数ペア:

[(1, 2663361), (3, 887787), (9, 295929), (27, 98643), (81, 32881), (131, 20331), (251, 10611), (393, 6777), (753, 3537), (1179, 2259)]