81905121

素因数分解:

$3^3\times {\mathrm{487}}^1\times {\mathrm{6229}}^1$

素因数の和:6725

約数の個数: 16

約数和(自身を含む): 121609600

約数和(自身を除く): 39704479

約数列:

[1, 3, 9, 27, 487, 1461, 4383, 6229, 13149, 18687, 56061, 168183, 3033523, 9100569, 27301707, 81905121]

約数ペア:

[(1, 81905121), (3, 27301707), (9, 9100569), (27, 3033523), (487, 168183), (1461, 56061), (4383, 18687), (6229, 13149)]