81206523

素因数分解:

$3^3\times {\mathrm{157}}^1\times {\mathrm{19157}}^1$

素因数の和:19323

約数の個数: 16

約数和(自身を含む): 121078560

約数和(自身を除く): 39872037

約数列:

[1, 3, 9, 27, 157, 471, 1413, 4239, 19157, 57471, 172413, 517239, 3007649, 9022947, 27068841, 81206523]

約数ペア:

[(1, 81206523), (3, 27068841), (9, 9022947), (27, 3007649), (157, 517239), (471, 172413), (1413, 57471), (4239, 19157)]